Underestimating sins stems from ignorance of Allah's majesty, Shaytan's deception, heedlessness of judgment day, and the cumulative effect of sins. The Quran emphasizes the gravity of every sin.
In the grand tapestry of Islamic teachings, as revealed in the Holy Quran, the concept of sin is dealt with with utmost seriousness and profound depth. While the Quran does not explicitly state, "This is why humans underestimate sins," it provides an intricate framework that, when examined, illuminates the various psychological, spiritual, and deceptive factors contributing to this dangerous tendency. From a divine perspective, the notion of a "small" or "insignificant" sin is fundamentally flawed, though human jurisprudence might categorize sins into *sagha'ir* (minor) and *kaba'ir* (major) for specific legal and practical considerations, particularly concerning their earthly consequences or the conditions for their expiation. This categorization, however, must never be interpreted as an invitation to trivialize any act of disobedience to Allah. The Quran consistently warns believers against *any* transgression, emphasizing that even seemingly minor infractions can carry significant spiritual weight and accumulate into devastating spiritual burdens. One of the foremost reasons why individuals might underestimate certain sins lies in **a profound lack of true understanding and awe of Allah's infinite majesty and boundless power.** When the human heart fails to grasp the sheer magnificence of the Being it is transgressing against, the act of disobedience appears commensurately less significant. The Quran is replete with verses that call humanity to reflect upon Allah's sublime attributes: His omniscience, encompassing every whisper of the heart and every hidden intention; His omnipotence, His justice, and simultaneously, His boundless mercy alongside His severe punishment for those who persist in defiance. When a believer genuinely internalizes that every single action, word, and thought is meticulously known, seen, and recorded by the All-Knowing God, the very notion of a "small" sin begins to dissolve. This profound realization nurtures *taqwa* – a state of God-consciousness, mindfulness, and a deep-seated awe of Allah – which naturally compels an individual to fear even the slightest deviation from His divinely ordained path. As the revered scholars of Islam have eloquently taught, "Do not look at the smallness of the sin, but look at the greatness of the One Whom you are disobeying." This principle is a cornerstone for true spiritual development and serves as a powerful deterrent against belittling any sin. Secondly, **the insidious and relentless whispers and deceptions of Shaytan (Satan) play an absolutely crucial role** in making sins appear trivial or appealing. The Quran unequivocally identifies Shaytan as humanity's eternal, sworn enemy, whose singular objective is to misguide mankind and lead them astray from the straight path. Across numerous verses, Allah explicitly warns us against following Shaytan's footsteps, which are designed to lead to perdition (e.g., Surah Al-Baqarah 2:208, "O you who have believed, enter into Islam completely [and perfectly] and do not follow the footsteps of Satan. Indeed, he is to you a clear enemy."). Shaytan employs various tactics: he beautifies sin, makes it seem harmless or a source of temporary pleasure, convinces individuals that they possess ample time for future repentance, or deceptively whispers that Allah is too merciful to punish what appears to be a "minor" transgression. He might inject thoughts like, "Everyone else does this," or "Your good deeds far outweigh these small mistakes." This continuous, subtle, and insidious deception gradually desensitizes the heart to the true gravity of sin, fostering a perilous sense of complacency and leading to continuous indulgence. Without vigilance, the heart becomes accustomed to disobedience, blurring the lines between right and wrong. Thirdly, **human heedlessness (*ghaflah*) and a profound forgetfulness of the inevitable Day of Judgment and ultimate accountability** are significant contributors to the underestimation of sins. The relentless pace of worldly life, its myriad distractions, the allure of material pursuits, and the comforting predictability of daily routines can tragically cause people to lose sight of their ultimate purpose and the certainty of their return to Allah for a comprehensive reckoning. The Quran frequently serves as a powerful reminder of the inevitability of death, the resurrection, and the Day of Judgment, where "not an atom's weight" of good or evil will escape scrutiny (Surah Az-Zalzalah 99:7-8). When this ultimate accountability is relegated to the distant recesses of the mind, the immediate, fleeting gratification offered by a "small" sin appears far more enticing than the potential future consequence, which feels remote and abstract. The Quran issues a stern warning to those who live in a state of heedlessness, likening them to livestock, or even worse: "And We have certainly created for Hell many of the jinn and mankind. They have hearts with which they do not understand, and eyes with which they do not see, and ears with which they do not hear. Those are like livestock; rather, they are more astray. It is those who are the heedless." (Surah Al-A'raf 7:179). This spiritual slumber prevents the heart from perceiving the true danger of even seemingly minor transgressions. Furthermore, a critical and often underestimated danger is **the cumulative effect of "minor" sins.** While Islamic theology teaches that Allah, in His immense mercy, may forgive minor sins if one avoids major sins (as indicated in Surah An-Nisa 4:31: "If you avoid the major sins which you are forbidden, We will remove from you your lesser sins and admit you to a noble entrance [to Paradise]."), the continuous and unrepentant commission of minor sins can profoundly corrupt the heart, diminish one's spiritual sensitivity, and incrementally lead to the commission of major sins. The profound analogy frequently employed by Islamic scholars is that of drops of water filling a bucket: individually, a single drop is utterly insignificant, but a continuous, unchecked flow of drops will inevitably cause the bucket to overflow. Similarly, seemingly minor transgressions, when committed repeatedly, habitually, and without genuine remorse, gradually erode one's faith, pollute the soul, and can tragically lead an individual to a state where major sins become permissible, or even appear desirable and normal. This subtle, almost imperceptible spiritual descent is a perilous trap masterfully set by Shaytan and fostered by human complacency and self-deception. Finally, **the deceptive act of comparing oneself to others, or harboring a distorted and superficial sense of one's own piety,** can also lead to the dangerous underestimation of sins. An individual might observe others committing what they perceive as "greater" sins and subsequently conclude that their own "small" sins are negligible or inconsequential in comparison. This mindset is a perilous spiritual trap, as one's ultimate accountability is exclusively to Allah, and not to the flawed standards or actions of other human beings. The Quran emphatically underscores the principle of individual responsibility: "And no bearer of burdens will bear the burden of another" (Surah Fatir 35:18). Moreover, some individuals might meticulously perform outward acts of worship – such as prayer, fasting, and giving charity – but simultaneously neglect their inner spiritual cleanliness, subtly justifying minor moral failings because of their apparent outward piety. True piety (*taqwa*), as elucidated in the Quran, encompasses both meticulous outward obedience to divine commands and profound inner purity, requiring a constant, vigilant struggle against *all* forms of transgression, whether visible or hidden, major or minor. In summary, the Quranic perspective on sin is comprehensive, profound, and deeply serious. It meticulously instills in the heart of a believer a profound sense of accountability to the Creator and an unwavering understanding that *every single* act of disobedience, regardless of its subjectively perceived magnitude, constitutes a transgression against the Divine Will. The perilous tendency to underestimate sins arises from a complex interplay of spiritual ignorance concerning Allah's majesty, the persistent and cunning deception of Shaytan, pervasive human heedlessness regarding ultimate accountability, the insidious nature of sin's accumulation, and often, a flawed or self-serving self-perception. The robust and unfailing path to countering and ultimately overcoming this dangerous inclination lies in assiduously cultivating sincere *taqwa*, engaging in constant and heartfelt remembrance of Allah and the certainty of the Day of Judgment, diligently seeking beneficial knowledge, and committing to immediate and sincere repentance for every misstep, no matter how insignificant it may appear. This holistic approach ensures spiritual vigilance and a heart that remains sensitive to Allah's commands.
And the record will be placed [before them], and you will see the criminals fearful of what is therein, and they will say, 'Oh, woe to us! What is this book that leaves nothing small or great except that it has enumerated it?' And they will find what they did present [before them]. And your Lord does not wrong anyone.
If you avoid the major sins which you are forbidden, We will remove from you your lesser sins and admit you to a noble entrance [to Paradise].
And We have certainly created for Hell many of the jinn and mankind. They have hearts with which they do not understand, and eyes with which they do not see, and ears with which they do not hear. Those are like livestock; rather, they are more astray. It is those who are the heedless.
Once, a wise man told his son: 'O my son, never neglect small matters nor deem them insignificant, for small things are the foundation of great ones.' The son, being young and impetuous, scoffed, saying, 'Father, what talk is this? Should a grain of sand be considered equal to a mountain?' Some time later, the son embarked on a sea voyage for trade. During one of his journeys, a fierce storm arose. The sailors and crew struggled to save the ship, but water was steadily seeping in, drop by drop, through a tiny crack in the hull. The son, noticing this crack, laughed and said, 'What harm can this tiny hole cause? Let us spend our time on more important matters.' But the drops of water continued, each drop joining another, until the water filled the ship, and the vessel, with all its cargo and possessions, sank. It was then that the son regretfully remembered his father's words and understood how a small oversight had led to a great catastrophe. He realized that sins, no matter how small they may seem, if continuously repeated and left unrepented, can, like those very drops of water, drag the ship of a person's faith and salvation into the abyss of destruction.