M5:542 — ای بسا نازا که گردد آن گناه / افکند مر بنده را از چشم شاه

This beyt comes in the middle of a story where a wise man observes a peacock plucking out its own beautiful feathers. The peacock explains that it does this because its feathers, though lovely, attract hunters and thus endanger its life. It prefers to be ugly and safe. Rumi then uses this as an allegory for human behavior, particularly the 'grace' or 'charm' (nāz) that can lead to pride. The beyt serves as a cautionary note: while outward beauty or a certain 'air' might seem appealing, if it stems from vanity or leads to arrogance, it becomes a sin. This 'sin' then has dire consequences, causing the 'servant' (the human being) to be 'cast from the King's eye' (to lose God's favor or spiritual proximity). Rumi is emphasizing that true value lies not in outward show or self-admiration, but in humility and spiritual well-being, even if it means sacrificing superficial attractions.