[Ibn Qayyim's: The Sickness and The Cure] #11 -The Poison of Sin, the Death of Sensitivity, and the Path Back to Allah
One of the greatest deceptions that overtakes the believer is the assumption that sin is something isolated, small, temporary, and contained. A person may imagine that a single act of disobedience passes like a moment, leaving no lasting trace behind.
The scholars never described sin in such a light manner. They described it as poison. Its effect upon the soul is like poison upon the body. It harms according to its strength, its repetition, and the depth with which it enters. If poison is left untreated, it does not remain in one place. It spreads silently, weakens the limbs, corrupts the organs, and eventually destroys life itself. Sin behaves in the same way. It is not merely an action; it is a spiritual disease.
This is why the righteous constantly feared sins, even those people consider “small.” They understood that every act of disobedience leaves a mark upon the heart. And if those marks are not removed through tawbah and sincere return to Allah, they accumulate until the heart loses its clarity, softness, and ability to distinguish truth from falsehood.
The Qur’an and Sunnah repeatedly connect destruction to disobedience. What removed Adam and Hawa from Jannah? What caused Iblis to fall from honor into eternal curse? What destroyed the nations of Nuh, ‘Ad, Thamud, and the people of Lut? It was sin. Not merely mistakes of action, but rebellion against Allah. Sin is never harmless. It carries consequences in both the seen and unseen worlds.
The Messenger of Allah ﷺ was shown scenes from the unseen that reveal how actions take form in reality. Among the most terrifying was what he witnessed during al-Isra’.
He ﷺ said, “On the night I was taken on the Night Journey, I passed by people who had nails of copper with which they were scratching their faces and chests.”
When he ﷺ asked who they were, he was told, “These are the ones who used to consume the flesh of people and violate their honor.”
SubhanAllah.
What is treated lightly upon the tongue becomes unbearable in reality. A sentence casually spoken, a rumor spread, a person dishonored in conversation, these things do not disappear. They take form. This teaches us that sins are not abstract; they have consequence, weight, and manifestation before Allah.
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The collapse of a person or a society rarely begins with dramatic rebellion. It begins subtly. The Prophet ﷺ warned of a people whose outward appearance concealed inner corruption, “Their tongues are sweeter than sugar, but their hearts are the hearts of wolves.”
Their speech is polished. Their words are attractive. Religion becomes appearance, and righteousness becomes performance. But sincerity disappears. And when sincerity disappears, confusion spreads. A person may look religious, sound religious, and even speak beautifully about faith, while the heart is filled with pride, envy, ambition, and insincerity. This is among the most dangerous spiritual diseases because it deceives both the individual and the people around them.
ʿAli ibn Abi Talib RA described a frightening time when Islam remains only in form. He said that a time would come when nothing remains of Islam except its name, and nothing remains of the Qur’an except its script. Mosques would be full, yet empty of guidance.
This does not refer to physical emptiness, but spiritual emptiness. Buildings remain, recitation continues, and gatherings exist, but the transforming power of revelation disappears. Islam survives as identity while surrender disappears. The Qur’an is recited but not lived. Worship is performed, but without presence, humility, or transformation.
The Messenger of Allah ﷺ described the first corruption of Bani Israel, and its lesson is terrifying because of how ordinary it appears. A man would see another committing wrong and would advise him, saying, “Fear Allah.” But the next day, he would sit with him as though nothing had happened. There was no principled stance, no visible discomfort, no refusal to normalize evil. Slowly, the line between right and wrong dissolved, and eventually their hearts became alike. Then came the curse of Allah.Their destruction did not begin with disbelief alone, but with silence. Indifference became participation.
There are narrations that shake the heart even further. Among sinful people, there was once a worshipper known for devotion. Yet when punishment was decreed, the command came, "begin with him." Why?Because he never showed anger for the sake of Allah. His prayer existed. His worship existed. But protective concern for the sanctity of Allah’s limits, was absent.
Another narration carries the same meaning: people were punished, including righteous individuals among them, because they witnessed sin and it no longer disturbed them. They continued to mix, normalize, and live as though nothing was wrong.This teaches a profound lesson: righteousness is not only personal devotion. It is also a living concern for truth and a refusal to let the heart become indifferent to disobedience.
Al-Hasan al-Basri رحمه الله described people who displayed knowledge yet failed to act upon it. They expressed love outwardly while harboring hatred inwardly. They severed ties of kinship while speaking of virtue. The result was not merely social corruption but spiritual blindness. Truth still exists, but the heart no longer receives it. Guidance is present, but spiritual perception is lost.
This is the turning point: desensitization. When sin is seen repeatedly without reaction, it first becomes familiar, then acceptable, then practiced, and eventually defended. The greatest danger is not the first exposure to sin but the disappearance of discomfort toward it. If the heart no longer hates what displeases Allah, then what remains of iman?
The Prophet ﷺ said, “Whoever among you sees an evil, let him change it with his hand. If he is unable, then with his tongue. If he is unable, then with his heart—and that is the weakest of faith.”
Even the weakest level of faith requires something essential: a heart that still feels.
We live in an age where sin is normalized, boundaries are blurred, and even the forbidden is beautified. Public sins are celebrated, modesty is mocked, and disobedience is reframed as freedom. In such a world, the believer must hold onto something deeper than public opinion: a living heart.
A heart that still recognizes. A heart that still feels. A heart that still returns.
The believer is also taught to reflect when calamities occur. When the earth trembled during the time of the Prophet ﷺ, he reminded the people that their Lord was calling them to seek His pleasure. ʿUmar ibn al-Khattab RA, when an earthquake struck, warned the people to examine themselves and what they had introduced.
This does not mean every calamity can be reduced to a simple explanation. Natural events have physical causes. But the believer does not stop at material analysis alone. He also looks inward. How are we with salah? How are we with zakah, honesty, family ties, and our dealings with others? How are relationships formed; through halal or through disobedience? These are not merely private matters. They shape the spiritual condition of a people.
The Prophet ﷺ warned that when sins become public and are not corrected, their harm spreads beyond the individual. Likewise, he warned that when love of dunya overtakes a people, humiliation descends upon them until they return to their religion. And return they must.
Despite everything, one truth remains full of hope: Allah did not create a disease except that He created its cure.
The greatest of cures are tawbah, duʿa, sincerity, and returning to the Qur’an. Allah describes the Qur’an as:
وَنُنَزِّلُ مِنَ الْقُرْآنِ مَا هُوَ شِفَاءٌ وَرَحْمَةٌ لِّلْمُؤْمِنِينَ
We send down from the Qur’an that which is healing and mercy for the believers. [Al-Isra’ 17:82]
As Ibn al-Qayyim رحمه الله explains, the Qur’an heals what is within the heart. It removes doubt, desire, corruption, and spiritual disease when approached with sincerity and belief.
In the end, the issue is not whether we sin. Every human being slips. The real question is: do we still feel it? Because a heart that feels can return. A heart that returns can be healed. And a heart that is healed can reach Allah.
May Allah protect our hearts from becoming numb, make us among those who recognize their faults, and grant us sincere tawbah before the heart loses its ability to return...
Disclaimer:
The notes written are from a student’s personal notes transcribed from the sessions. Should there be any error, May Allah forgive us, and do feedback (ain1810@gmail.com) so that it can get amended, and may it be beneficial to all of us and may Allah reward Jannah to Sh Sajid and his team for the beneficial ‘ilm being shared and to all of the students Steps to Jannah, Ameen.