Iman, or faith, is the foundation of a Muslim’s life. Every act of worship, every good deed and every moral choice grows from what a person believes in the heart.
Islam defines faith clearly through six pillars, known as the arkan al-iman: belief in Allah, His angels, His books, His messengers, the Last Day and divine decree (qadar), both its good and its bad.
These six pillars were summarised by the Prophet Muhammad ﷺ in the famous hadith of Jibril.
A man with very white clothes and very black hair came to the Prophet ﷺ, sat before him and asked about Islam, iman and ihsan.
When asked about iman, the Prophet ﷺ replied: “That you believe in Allah, His angels, His books, His messengers and the Last Day, and that you believe in divine decree, its good and its evil.”
After the man left, the Prophet ﷺ told his companions: “That was Jibril. He came to teach you your religion.”
This guide explains each pillar in detail, the Quranic evidence behind it, what it means in practice and how it shapes the life of a believer.
What Is Iman?
Linguistically, iman means affirmation and trust. In Islamic terminology, it is belief in the heart, declaration with the tongue and action with the limbs.
Scholars of Ahl al-Sunnah explain that iman increases with obedience and decreases with sin.
Allah says: “It is He who sent down tranquillity into the hearts of the believers that they would increase in faith along with their present faith” (Al-Fath 48:4).
Iman is therefore not a static label.
It is a living state that a believer nourishes through prayer, Quran recitation, remembrance of Allah and good deeds, and that weakens through neglect and disobedience.
The difference between Islam and iman
Islam refers primarily to outward submission: the testimony of faith, prayer, zakat, fasting and Hajj. Iman refers primarily to inner belief.
When mentioned together, as in the hadith of Jibril, they carry these distinct meanings. When mentioned separately, each can include the other.
Allah says: “The Bedouins say, ‘We have believed.’ Say, ‘You have not yet believed; but say, We have submitted, for faith has not yet entered your hearts'” (Al-Hujurat 49:14).
This shows that iman is a deeper level than outward submission.
The Quranic basis of the six pillars
Allah says: “Righteousness is not that you turn your faces toward the east or the west, but true righteousness is in one who believes in Allah, the Last Day, the angels, the Book and the prophets” (Al-Baqarah 2:177).
He also says: “The Messenger has believed in what was revealed to him from his Lord, and so have the believers. All of them have believed in Allah and His angels and His books and His messengers” (Al-Baqarah 2:285).
And regarding decree: “Indeed, all things We created with predestination” (Al-Qamar 54:49).
Pillar One: Belief in Allah
Belief in Allah is the first and most important pillar. All other pillars rest upon it. It includes four elements.
Belief in Allah’s existence
The existence of Allah is affirmed by the natural disposition (fitrah) that every human is born with, by reason, by revelation and by the senses.
The Quran asks: “Or were they created by nothing, or were they the creators of themselves?” (At-Tur 52:35).
Everything that begins to exist has a cause, and the universe, with its order and precision, points to a Creator.
Belief in Allah’s lordship (rububiyyah)
Allah alone is the Creator, Owner and Controller of everything. “Unquestionably, His is the creation and the command” (Al-A’raf 7:54).
He gives life and death, provides sustenance and governs all affairs.
Belief in Allah’s right to worship (uluhiyyah)
Because Allah alone creates and sustains, He alone deserves worship. This is the meaning of la ilaha illallah: there is no deity worthy of worship except Allah.
Every prophet called his people to this: “And We certainly sent into every nation a messenger, saying, ‘Worship Allah and avoid false gods'” (An-Nahl 16:36).
Belief in Allah’s names and attributes
Allah has beautiful names and perfect attributes that He affirmed for Himself in the Quran and that the Prophet ﷺ affirmed for Him.
Believers affirm them without distorting their meaning, denying them, asking how they are, or likening them to creation.
“There is nothing like unto Him, and He is the Hearing, the Seeing” (Ash-Shura 42:11).
Effects of belief in Allah
- Love, hope and fear directed to Allah alone.
- Reliance on Allah in every situation.
- Freedom from fear of creation, since benefit and harm are ultimately in Allah’s hand.
- Peace of heart: “Unquestionably, by the remembrance of Allah hearts are assured” (Ar-Ra’d 13:28).
Pillar Two: Belief in the Angels
Angels are a creation of Allah made from light. They are unseen beings who worship Allah constantly and never disobey Him.
“They do not disobey Allah in what He commands them but do what they are commanded” (At-Tahrim 66:6).
What belief in angels includes
- Believing that they exist.
- Believing in those whose names we know, such as Jibril, Mika’il and Israfil, and believing generally in the rest.
- Believing in the attributes Allah has described, such as their wings and great size. The Prophet ﷺ saw Jibril in his true form with six hundred wings filling the horizon.
- Believing in the tasks they perform.
Some angels and their roles
| Angel | Role |
|---|---|
| Jibril | Brings revelation to the prophets |
| Mika’il | Entrusted with rain and vegetation |
| Israfil | Will blow the trumpet at the end of time |
| The Angel of Death | Takes souls at the appointed time |
| Kiraman Katibin | Record every person’s deeds |
| Munkar and Nakir | Question people in the grave |
| Malik | Guardian of Hellfire |
| Ridwan | Guardian of Paradise, according to many scholars |
Effects of belief in angels
- Awareness that every word and deed is recorded: “Man does not utter any word except that with him is an observer prepared to record” (Qaf 50:18).
- Gratitude to Allah for His care, since angels protect and pray for believers.
- Encouragement to do good and avoid sin, knowing that angels are present.
- Recognising the greatness of Allah through the greatness of His creation.
Pillar Three: Belief in the Revealed Books
Allah sent down books to His messengers as guidance for humanity. Muslims believe in all of them in their original form.
The books mentioned by name
- The Suhuf (scrolls) of Ibrahim and Musa.
- The Tawrah given to Musa.
- The Zabur given to Dawud.
- The Injil given to Isa.
- The Quran given to Muhammad ﷺ.
The Quran’s special status
The Quran is the final revelation, preserved by Allah from any change: “Indeed, it is We who sent down the message, and indeed, We will be its guardian” (Al-Hijr 15:9).
It confirms the truth in earlier scriptures and stands as a criterion over them (Al-Ma’idah 5:48).
Earlier books were entrusted to their followers to preserve, and over time parts were altered or lost.
The Quran, however, remains exactly as it was revealed, memorised by millions and recited in the same words across the world.
What belief in the books requires
- Believing they were truly revealed by Allah.
- Believing in those named and generally in others.
- Affirming the true information they contain.
- Following the rulings of the Quran, which is the final and binding revelation.
Effects of belief in the books
- Recognising Allah’s mercy in sending guidance to every nation.
- Love and respect for the Quran, and a commitment to recite, understand and act upon it.
- Recognising the unity of the prophetic message across history.
Pillar Four: Belief in the Messengers
Allah chose messengers from among humanity to convey His message.
“And We sent not before you any messenger except that We revealed to him that, ‘There is no deity except Me, so worship Me'” (Al-Anbiya 21:25).
What belief in messengers includes
- Believing that their message is true and from Allah.
- Believing in those we know by name and generally in all others.
- Affirming the authentic reports about them.
- Following the law of the final messenger, Muhammad ﷺ.
Prophets named in the Quran
Twenty-five prophets are mentioned by name in the Quran, including Adam, Nuh, Ibrahim, Isma’il, Ishaq, Ya’qub, Yusuf, Musa, Harun, Dawud, Sulayman, Yunus, Zakariyya, Yahya, Isa and Muhammad ﷺ. The five greatest, known as Ulul-‘Azm, are Nuh, Ibrahim, Musa, Isa and Muhammad ﷺ.
Muhammad ﷺ, the seal of the prophets
“Muhammad is not the father of any of your men, but he is the Messenger of Allah and seal of the prophets” (Al-Ahzab 33:40). No prophet will come after him.
His message is for all humanity until the end of time.
Qualities of the messengers
All messengers were human beings, chosen by Allah, truthful, trustworthy, protected from major sin and from error in conveying the message.
They ate, slept, married and experienced hardship, making them practical examples for people to follow.
Effects of belief in messengers
- Love and respect for all prophets, without making distinction between them in belief.
- Following the Prophet Muhammad ﷺ as the best example: “There has certainly been for you in the Messenger of Allah an excellent pattern” (Al-Ahzab 33:21).
- Gratitude to Allah for sending guides.
Pillar Five: Belief in the Last Day
The Last Day is the Day of Resurrection, when Allah will raise all people for judgement.
Belief in it is mentioned constantly alongside belief in Allah in the Quran, because it transforms how a person lives.
What belief in the Last Day includes
- Life in the grave: questioning by the angels, and the grave being either a garden of Paradise or a pit of the Fire.
- The signs of the Hour: minor and major signs that precede the end of the world.
- Resurrection: all people will be raised from their graves.
- Gathering and judgement: people will be gathered, books of deeds will be given and deeds will be weighed on the scale.
- The bridge (sirat): set over Hell, which people will cross according to their deeds.
- Paradise and Hell: the final abodes, which exist now and will last forever.
Effects of belief in the Last Day
- Eagerness to do good and hope for reward.
- Fear of wrongdoing and accountability.
- Comfort for the oppressed, knowing that justice will be done.
- Perspective on worldly life, which is temporary: “And the worldly life is not but amusement and diversion; but the home of the Hereafter is best for those who fear Allah” (Al-An’am 6:32).
Pillar Six: Belief in Divine Decree (Qadar)
Belief in qadar means believing that Allah has known, written, willed and created everything that happens. It has four levels, as explained by scholars.
The four levels of qadar
- Knowledge (‘ilm): Allah knows everything, past, present and future, in full detail.
- Writing (kitabah): Allah wrote the decrees of all things in the Preserved Tablet fifty thousand years before creating the heavens and the earth.
- Will (mashi’ah): Nothing happens except by Allah’s will. “And you do not will except that Allah wills” (At-Takwir 81:29).
- Creation (khalq): Allah is the Creator of all things, including the actions of His servants.
Qadar and free will
Belief in qadar does not cancel human choice. People have real will and ability, and they are accountable for their choices.
Allah does not burden a soul beyond its capacity. The Prophet ﷺ was asked whether people should rely on what is written and abandon deeds.
He replied: “Work, for everyone will be facilitated toward what he was created for.”
Effects of belief in qadar
- Contentment and calm in hardship, knowing that what befell you was never going to miss you.
- Humility in success, recognising it as a gift from Allah.
- Courage, since nothing can harm you except what Allah has decreed.
- Relief from regret and anxiety: “In order that you not despair over what has eluded you and not exult over what He has given you” (Al-Hadid 57:23).
How the Six Pillars Work Together
The six pillars are interconnected.
Belief in Allah leads to belief in His angels who carry His revelation, His books that contain His guidance and His messengers who deliver and embody it.
Belief in the Last Day gives meaning to that guidance, and belief in qadar brings peace in accepting Allah’s wisdom. Rejecting any one pillar breaks the structure of faith.
| Pillar | Key Quranic reference | Main effect on life |
|---|---|---|
| Allah | Al-Ikhlas 112 | Worship and reliance on Allah alone |
| Angels | At-Tahrim 66:6 | Awareness of being observed and recorded |
| Books | Al-Hijr 15:9 | Commitment to the Quran |
| Messengers | Al-Ahzab 33:21 | Following the Prophet’s example |
| Last Day | Al-An’am 6:32 | Accountability and hope |
| Qadar | Al-Qamar 54:49 | Contentment and courage |
Strengthening Iman in Daily Life
Faith grows through deliberate effort. Practical ways to strengthen it include:
- Reciting and reflecting on the Quran daily, especially verses about Allah’s names and the Hereafter.
- Guarding the five prayers on time with focus.
- Remembering Allah through morning and evening adhkar.
- Learning about Allah’s names and reflecting on their meanings.
- Studying the life of the Prophet ﷺ to deepen love for him.
- Reflecting on creation, as the Quran repeatedly invites.
- Keeping good company that reminds you of Allah.
- Repenting quickly after sins, since sin weakens faith.
- Making dua for steadfastness: “Ya muqallibal-qulub, thabbit qalbi ‘ala dinik” (O Turner of hearts, make my heart firm upon Your religion).
Teaching the Six Pillars to Children
Children can begin learning the six pillars early.
Use simple explanations, a hand-drawn chart with six pillars holding up a house and stories connected to each pillar: angels visiting Ibrahim, Musa receiving the Tawrah, the stories of the prophets, and the description of Paradise.
Repeat the hadith of Jibril together and let children explain each pillar in their own words.
Frequently Asked Questions
What are the six pillars of iman?
Belief in Allah, His angels, His books, His messengers, the Last Day and divine decree, its good and its bad.
Where do the six pillars come from?
They are mentioned in the Quran in several places, such as Al-Baqarah 2:177 and 2:285, and summarised by the Prophet ﷺ in the hadith of Jibril.
What is the difference between the pillars of Islam and the pillars of iman?
The five pillars of Islam are outward acts of worship: shahada, prayer, zakat, fasting and Hajj. The six pillars of iman are matters of inner belief.
Can iman increase and decrease?
Yes. Iman increases with obedience and remembrance of Allah and decreases with sin and neglect.
Does belief in qadar mean we have no choice?
No. People have genuine will and are accountable for their choices, while Allah’s knowledge and will encompass everything.
Final Thoughts
The six pillars of iman are the roots from which a Muslim’s entire life grows.
They answer the deepest questions of existence: who created us, why we are here, how we should live and where we are going.
When these beliefs settle firmly in the heart, they produce worship, good character, courage and contentment.
Study these pillars, reflect on the verses that describe them and ask Allah to strengthen your faith.
As the Prophet ﷺ taught, faith wears out in the heart like a garment wears out, so ask Allah to renew the faith in your hearts.
Study the articles of faith with a qualified teacher.