According to search-discovered classical Islamic scholarship, the Quranic concept of 'zayyana' (making things seem attractive or adorned) is a central theme in understanding divine testing and spiritual deception. Ibn Kathir explains that this 'adornment' is a primary tool of Satan, who makes sinful acts and disbelief appear beautiful and fair-seeming to humanity, causing their hearts to harden (Quran 6:43). This is complemented by Al-Tabari’s linguistic analysis of the root z-y-n, which signifies beautification, highlighting the deceptive nature of the process. The synthesis of scholarly views across verses like 6:108 and 40:37 reveals that this phenomenon is not solely external; a person's own arrogance and persistent evil can lead to their deeds being 'adorned' in their own sight, as exemplified by Pharaoh. Thus, 'zayyana' serves as a profound explanation for why humanity often chooses falsehood over truth, being deluded by the superficial attractiveness of evil and the adornments of the worldly life.