Does iman increase and decrease? According to Ahl al-Sunnah, yes — faith rises with obedience and falls with sin, and every believer feels its highs and lows. Understanding that iman fluctuates, and that the low periods are normal rather than proof of hypocrisy, brings both honesty and hope to the life of faith.
This piece builds on our earlier one: Signs of Weak Iman and How to Revive It — here we go deeper and more practical.
Does iman — faith — increase and decrease? It is a question every believer eventually asks, often in a low period, wondering whether their wavering faith means something is wrong with them. And the answer of Ahl al-Sunnah wa’l-Jama‘ah is clear and, in its way, deeply reassuring: yes, iman increases and decreases — it rises with obedience, remembrance, and good deeds, and falls with sin, heedlessness, and neglect. This is the settled belief of the Sunni tradition, drawn from the Quran and Sunnah, and it means that the highs and lows of faith that every believer feels are not a sign of hypocrisy or of being an exception, but the normal condition of the human heart, which the very tradition describes and accounts for. Understanding that iman fluctuates — that it is natural for faith to rise and fall, that the low periods come to everyone including the righteous, and that they are a call to renew one’s faith rather than proof of its absence — brings both honesty and hope to the life of faith: honesty in facing the reality of one’s wavering, and hope in knowing that iman can always be renewed and increased. To reflect on whether iman increases and decreases, then, is to understand the nature of faith itself, to make peace with its natural fluctuation, and to learn how to raise it when it falls — a subject of the greatest practical importance for every believer.
The Sunni Belief That Iman Fluctuates
The belief that iman increases and decreases is a settled position of Ahl al-Sunnah, grounded in clear evidence, and understanding it removes much confusion and distress. First, the Quran states that iman increases: Allah ﷻ describes the believers as those whose faith increases when His verses are recited to them — “and when His verses are recited to them, it increases them in faith” (Quran 8:2) — and speaks of Him sending down tranquillity so that the believers “would increase in faith along with their faith” (Quran 48:4). If iman increases, it can also decrease. Second, iman rises with obedience and falls with sin: the Sunni understanding is that iman — which includes belief, speech, and action — rises with acts of obedience, worship, remembrance, and good deeds, and falls with acts of sin, heedlessness, and neglect. Each good deed raises it; each sin lowers it. Third, the Prophet ﷺ described faith wearing out in the heart: the Prophet ﷺ taught that “iman wears out in the heart of one of you as a garment wears out, so ask Allah ﷻ to renew the iman in your hearts” (reported by al-Hakim and graded hasan) — a clear indication that faith can weaken and needs renewing. Fourth, the Companions ؓ spoke of faith rising and falling: the Companions ؓ and early Muslims spoke openly of faith increasing and decreasing, and would remind one another to sit and renew their faith; it was a known and accepted reality among the best of this ummah. Fifth, even the righteous feel the lows: the fluctuation of faith comes to everyone, including the righteous and the devout — even a Companion ؓ once feared he had become a hypocrite because his state at home differed from his state with the Prophet ﷺ, and the Prophet ﷺ reassured him that this changing of states was natural, “hour by hour” (Muslim 2750). So the fluctuation of iman is not a defect peculiar to the weak, but the normal human condition. And sixth, it is therefore a matter of honesty and hope, not despair: because iman naturally rises and falls, the low periods are not proof of hypocrisy or of being beyond hope, but a normal part of faith and a call to renew it — a matter for honest recognition and hopeful action, not for despair. So the Sunni belief that iman increases and decreases — grounded in the Quran (8:2, 48:4), the Prophet’s ﷺ teaching that faith wears out and needs renewing, the practice of the Companions ؓ, and the reassurance that even the righteous feel the lows (Muslim 2750) — brings honesty and hope to the life of faith, teaching us that our wavering is normal and that our faith can always be renewed.
What to Do When Iman Is Low
If iman naturally rises and falls, then the practical question is what to do when it is low — how to renew and raise it, as the Sunnah teaches. First, do not despair or assume hypocrisy: the very fact that a low in faith troubles you is itself a sign of faith, for the hypocrite is untroubled by it — so do not despair or conclude that you are a hypocrite; recognise the low as a normal part of faith and a call to act. Second, hold fast to the obligatory acts: above all, when iman is low, cling to the obligations — the five daily prayers most of all — even when you do not feel like it, for the obligatory acts are the anchor that holds faith from sinking further, and maintaining them in a low period is itself an act of great faith. Third, return to the Quran: return to the Quran — reciting it, listening to it, and reflecting on its meanings — for Allah ﷻ describes it as increasing the believers in faith (Quran 8:2), and it is among the greatest means of reviving the heart. Fourth, keep the remembrance of Allah ﷻ: keep the tongue and heart moist with the remembrance of Allah ﷻ — dhikr, istighfar, and du‘a — for remembrance revives the heart, and Allah ﷻ says that in the remembrance of Allah ﷻ do hearts find rest (Quran 13:28). Fifth, seek good company: sit with the righteous and in gatherings of faith and knowledge, for good company raises faith, and the Companions ؓ would renew their faith by sitting together. Sixth, remember death and the Hereafter: remember death, the grave, and the Hereafter, for the remembrance of the destroyer of pleasures softens the heart and revives a faith gone cold. Seventh, ask Allah ﷻ to renew your faith: follow the Prophet’s ﷺ instruction and ask Allah ﷻ to renew the iman in your heart, for He is the turner of hearts, and the Prophet ﷺ himself often prayed, “O Turner of hearts, make my heart firm upon Your religion” (Tirmidhi 2140). And eighth, reduce the causes of decline: cut back the sins, heedlessness, bad company, and excess of the permissible that lower faith, for reducing the causes of decline is as important as increasing the causes of rise. So when iman is low, do not despair or assume hypocrisy; hold fast to the obligations, return to the Quran (8:2), keep the remembrance of Allah ﷻ (13:28), seek good company, remember death and the Hereafter, ask Allah ﷻ to renew your faith (Tirmidhi 2140), and reduce the causes of decline — and by these means, with the help of Allah ﷻ, your faith will rise again, for iman that falls can always be renewed.
Yes — iman increases and decreases. Know that according to Ahl al-Sunnah, faith genuinely rises and falls — it increases with obedience, remembrance, and good deeds, and decreases with sin, heedlessness, and neglect. The Quran states that faith increases when Allah’s ﷻ verses are recited (8:2) and that He sends tranquillity so believers “increase in faith along with their faith” (48:4); and the Prophet ﷺ taught that “iman wears out in the heart as a garment wears out, so ask Allah ﷻ to renew the iman in your hearts” (al-Hakim, hasan). This settled Sunni belief is deeply reassuring: the highs and lows of faith that every believer feels are not a sign of hypocrisy or of being an exception, but the normal condition of the human heart, which the tradition itself describes and accounts for.
The low periods are normal, not proof of hypocrisy. Understand that the fluctuation of faith comes to everyone, including the righteous and the devout. A Companion ؓ once feared he had become a hypocrite because his state at home differed from his state with the Prophet ﷺ, and the Prophet ﷺ reassured him that this changing of states, “hour by hour,” was natural (Muslim 2750). So a low in your faith is not proof that you are a hypocrite or beyond hope — and the very fact that it troubles you is itself a sign of faith, for the hypocrite is untroubled by it. Do not despair or conclude the worst about yourself; recognise the low as a normal part of the life of faith and a call to renew it. This is a matter for honest recognition and hopeful action, never for despair.
Raise your faith when it falls, by the Sunnah’s means. When iman is low, act to renew it. Cling above all to the obligatory acts, the five prayers most of all, even when you do not feel like it, for they anchor faith from sinking further. Return to the Quran, which increases the believers in faith (8:2); keep the remembrance of Allah ﷻ, in which hearts find rest (13:28); sit with the righteous, for good company raises faith; remember death and the Hereafter, which softens the heart; and ask Allah ﷻ, the Turner of hearts, to renew your faith, as the Prophet ﷺ prayed, “O Turner of hearts, make my heart firm upon Your religion” (Tirmidhi 2140). And reduce the sins, heedlessness, and bad company that lower it. By these means, with Allah’s ﷻ help, faith that falls will rise again — for iman can always be renewed.
Does iman increase and decrease? According to Ahl al-Sunnah, yes — faith rises with obedience and falls with sin, and every believer feels its highs and lows. Understand the settled Sunni belief that iman fluctuates, grounded in the Quran (8:2, 48:4), the Prophet’s ﷺ teaching that faith wears out and needs renewing, and the reassurance that even the righteous feel the lows (Muslim 2750); make peace with the fact that the low periods are normal rather than proof of hypocrisy; and learn to raise your faith when it falls — holding fast to the obligations, returning to the Quran, keeping the remembrance of Allah ﷻ (13:28), seeking good company, remembering the Hereafter, asking Allah ﷻ to renew your faith (Tirmidhi 2140), and reducing the causes of decline. This understanding brings both honesty and hope to the life of faith: honesty in facing the reality of one’s wavering, and hope in knowing that iman can always be renewed and increased. So do not despair in the lows, do not grow complacent in the highs, and keep turning to Allah ﷻ, the Turner of hearts, to make your faith firm and to raise it, again and again, until you meet Him.
Frequently Asked Questions
Does iman increase and decrease in Islam?
According to Ahl al-Sunnah wa’l-Jama‘ah, yes — iman (faith) increases and decreases. It rises with acts of obedience, worship, remembrance, and good deeds, and falls with sin, heedlessness, and neglect. This is the settled belief of the Sunni tradition, grounded in the Quran and Sunnah: Allah ﷻ describes the believers as those whose faith increases when His verses are recited (8:2), and speaks of sending down tranquillity so that they “increase in faith along with their faith” (48:4). The Prophet ﷺ taught that “iman wears out in the heart as a garment wears out, so ask Allah ﷻ to renew the iman in your hearts” (al-Hakim, graded hasan). So the highs and lows of faith that every believer feels are real and normal — faith genuinely fluctuates, rising and falling with one’s deeds and state.
Is it normal for my faith to go up and down?
Yes — entirely normal. The fluctuation of faith comes to every believer, including the righteous and the devout; it is the normal condition of the human heart, not a defect peculiar to the weak. A Companion ؓ once feared he had become a hypocrite because his state at home, among family and worldly matters, differed from his heightened state in the company of the Prophet ﷺ. The Prophet ﷺ reassured him that this changing of states, “hour by hour,” was natural and not hypocrisy (Muslim 2750). So do not be alarmed that your faith rises and falls — that is the shared experience of believers across the centuries. What matters is that you keep renewing it in the lows and remain grateful and steadfast in the highs, always turning back to Allah ﷻ.
Does a low in my faith mean I am a hypocrite?
No — a low in your faith does not mean you are a hypocrite. In fact, the very concern you feel about it is itself a sign of living faith, for the true hypocrite is untroubled by the state of his heart and feels no distress at his distance from Allah ﷻ. Your unease at a low, your wish to be closer, and your search for how to renew your faith are all evidences of iman, not its absence. The Companion ؓ who feared hypocrisy for the changing of his states was reassured by the Prophet ﷺ that this was natural (Muslim 2750). So do not despair or conclude the worst about yourself. Recognise the low as a normal part of the life of faith and a call to renew it — and take the means to raise your faith again, trusting in the mercy of Allah ﷻ, who is the Turner of hearts.
How do I increase my iman when it feels low?
Take the means the Sunnah teaches. Above all, cling to the obligatory acts, the five daily prayers most of all, even when you do not feel like it, for they anchor faith from sinking further and maintaining them in a low period is itself an act of great faith. Return to the Quran — reciting, listening, and reflecting — for it increases the believers in faith (8:2). Keep the remembrance of Allah ﷻ (dhikr, istighfar, du‘a), in which hearts find rest (13:28). Sit with righteous, believing company, which raises faith. Remember death and the Hereafter, which softens the heart. Ask Allah ﷻ directly to renew your faith, as the Prophet ﷺ prayed, “O Turner of hearts, make my heart firm upon Your religion” (Tirmidhi 2140). And reduce the sins, heedlessness, and bad company that lower faith. By these means, with Allah’s ﷻ help, your faith will rise again.
What lowers a person’s iman?
Iman is lowered by sin, heedlessness, and neglect of worship. Acts of disobedience — whether of the limbs, the tongue, or the heart — each lower faith, as do falling into the forbidden, neglecting the prayers and obligations, and abandoning the remembrance of Allah ﷻ. Heedlessness (ghaflah) — forgetting Allah ﷻ, the Hereafter, and the purpose of life amid the distractions of the world — is a major cause of decline, as is bad company that pulls one toward sin and away from good, and excess in the permissible (food, sleep, entertainment, idle talk) that hardens the heart. To guard and raise one’s faith, then, one both increases the causes of its rise (obedience, Quran, remembrance, good company) and reduces the causes of its decline (sin, heedlessness, bad company, and excess). Both are needed — and both are within reach, by the help of Allah ﷻ, for the one who sincerely seeks to keep and grow their faith.