We often talk about faith. We say, “You must have faith.” But what does that really mean?
In reality, faith in Islam rests on a clear foundation: Tawḥīd, which means recognizing that Allah is One, that He alone deserves worship, and that He is perfect in His Names and Attributes.
Even though the word “Tawḥīd” does not explicitly appear in the Qur’an, the entire Qur’an speaks about it. Every verse brings us back to this central truth: Allah is One. He is the One to whom all things return.
Without Tawḥīd, faith has no foundation.
I. Faith is not fixed
One might think that faith is something fixed: either you have it or you do not — as if it were a stable state permanently settled in the heart. Yet the Companions had a much deeper understanding of this reality.
ʿUmar ibn al-Khaṭṭāb (may Allah be pleased with him) used to say: “Come, let us increase our faith.” This simple statement reveals an essential truth: faith fluctuates. It is not static. It increases and it decreases.
It increases when the heart is nourished by the remembrance of Allah, when the tongue becomes accustomed to dhikr, when the eyes reflect upon the verses of the Qur’an and the mind seeks to understand them. It grows through acts of obedience, even subtle ones, and through sincere learning of the religion. Every effort, even modest, leaves a trace and strengthens the inner self.
Conversely, faith weakens when remembrance fades, when distractions consume our days, and when the heart becomes absorbed in what does not elevate it. It diminishes when sins become habitual, when seeking knowledge is constantly postponed, and when one lives without nurturing a relationship with Allah.
Faith is alive. It breathes. It responds to what we feed it.
Imam Aḥmad ibn Ḥanbal (may Allah have mercy on him) summarized this reality by saying: “Faith consists of words and actions. It increases and decreases.” Faith is therefore not merely an inner emotion or an abstract conviction. It manifests concretely. It is reflected in prayer, in behavior, in speech, and in the choices we make when no one is watching.
Saying “Allah knows my heart” cannot suffice if our actions do not reflect the faith we claim to carry. A sincere heart will inevitably manifest through deeds. The coherence between what we believe and what we do is the true indicator of the vitality of faith.
II. Why does your faith sometimes decline?
Many people say, “I feel a drop in my faith.” This feeling is real, and it affects nearly every believer at different stages of life. Yet we rarely pause to ask the essential question: what does my lifestyle actually look like?
The scholar ʿAbd al-Razzāq al-Badr explains that goodness in this life and the next depends on sound, authentic faith preserved from deviation. In other words, inner stability is not random. It is the result of consistent maintenance.
Sometimes it is enough to honestly observe the course of a single day. What place does the Qur’an occupy in our schedule? How many moments are truly devoted to the remembrance of Allah? And conversely, how many hours are consumed by screens, social media, and constant entertainment?
These questions are not meant to induce guilt, but to bring clarity. The heart is influenced by what it regularly engages with. What we see, what we listen to, and what we dwell upon gradually shape our inner world.
Our environment either nourishes our faith… or exhausts it.
Faith cannot grow if it is not fed. Just as the body needs food to survive, the heart needs remembrance, knowledge, and worship to remain alive.
III. The role of knowledge
One of the major causes of increasing faith is the pursuit of religious knowledge (ṭalab al-ʿilm). Faith is not sustained by emotion alone or by habit; it is strengthened by understanding.
Ignorance weakens faith. Knowledge illuminates it.
It is no coincidence that the very first word revealed to the Prophet ﷺ was: “Iqra” — “Read.”
Revelation did not begin with a command to fight nor with a ritual obligation, but with a call to reading, learning, and understanding. Islam is a religion grounded in comprehension. The link between faith and knowledge is inseparable.
Reading, understanding, reflecting — this is how the heart is structured and belief is consolidated.
Beneficial knowledge rests primarily on three pillars. First, Tafsīr, which allows one to understand the Qur’an beyond mere recitation. Then Hadith, which clarifies the Sunnah and shows how the Prophet ﷺ lived and implemented revelation. Finally, Fiqh, which teaches how to practice the religion concretely in daily life.
Fiqh is essential because it regulates our actions. It is not enough to want to pray; one must know how to pray correctly. It is not enough to fast; one must know the conditions that validate the fast. The same applies to trade, marriage, and social interactions. Practice without knowledge may be invalid without us even realizing it.
Knowledge protects faith. It structures it, purifies it, and directs it. It prevents deviation, corrects mistakes, and gives coherence to actions.
Education in Islam is not a luxury reserved for scholars; it is a necessity for every believer. It begins with the basics: learning what is obligatory, understanding what one recites, and knowing the One whom one worships. Returning to “Iqra” is returning to the very essence of spiritual construction: a faith illuminated by knowledge, not driven solely by emotion.
The deeper the understanding, the more stable the faith becomes. And the more stable the faith, the more consistent the actions.
IV. Companionship: a decisive factor
We often underestimate the impact of our environment on our faith. Yet if we observe our own lives sincerely, we realize how deeply we are influenced — sometimes without even noticing.
We speak like the people we spend time with.
We gradually adopt their priorities.
We even begin to normalize what they normalize.
Faith does not develop in isolation. It evolves within an environment.
When we spend time with people who remind us of prayer, who mention Allah naturally, who encourage us to learn and improve, we feel an almost instinctive inner elevation. Their presence calms us, recenters us, and reminds us of what truly matters.
Conversely, if our environment minimizes obligations, normalizes sins, or treats religious practice lightly, our hearts gradually become accustomed to it — not abruptly, but progressively.
Today, our environment is no longer limited to the people we physically meet. Look at our phones.
The accounts we follow, the videos we watch, the content we consume daily occupy an immense space in our thoughts. Even when we say, “It’s just social media” or “It’s only entertainment,” our hearts are absorbing.
What we constantly see eventually redefines what we consider normal.
What we listen to influences our desires.
What we watch shapes our sensitivity.
If our environment brings us closer to Allah, our faith strengthens almost naturally. If it distances us — even subtly — it slowly weakens.
We must therefore ask ourselves honestly: does our environment nourish our faith, or does it exhaust it?
Sometimes increasing faith does not begin by multiplying actions, but by carefully choosing what we allow to enter our hearts.
V. How to revive weakened faith
When we feel a decline in faith, the solution is not a fleeting emotional impulse, but a methodical return to the foundations. ʿAbd al-Razzāq al-Badr reminds us that reviving faith begins with clear and accessible principles.
1. Return to the Qur’an
The first step is to return to the Qur’an — not only to recite it, but to reflect upon it. Reading a few verses with contemplation can have more impact than going through many pages without focus. The Qur’an reorganizes priorities, calms scattered thoughts, and restores inner direction.
2. Learn to know Allah
Faith strengthens when we learn about Allah through His Names and Attributes. Understanding that He is the Most Merciful, the Most Wise, the Most Forgiving, the Provider — this transforms the way we experience trials and blessings. The deeper the knowledge of Allah, the stronger the relationship with Him becomes.
3. Know the Prophet ﷺ
Reviving faith also requires knowing the Prophet ﷺ better. His patience, consistency, gentleness, and firmness during hardship provide a concrete model. His life teaches us that faith is not a theory, but a lived daily practice.
4. Understand the religion
Practice cannot be sustainable without understanding. Studying the foundations of belief, the essential rules of fiqh, and the teachings of the Sunnah prevents mistakes and gives coherence to actions. An informed faith is more stable than a purely emotional one.
5. Drawing inspiration from pious predecessors
Reading the biographies of the righteous predecessors reminds us that consistency is key. Their faith was not built overnight. It was strengthened through discipline, endurance, and regularity.
We ask Allah to teach us what benefits us, to allow us to benefit from what He has taught us, and to increase us in knowledge.
All correctness comes from Him.
And Allah knows best.