The gaze falls upon the jasmine, adorned with the curtain of the eyes; / We, however, could not find any use for the feather of the wing.

This profound couplet speaks to the overwhelming power of the beloved's gaze. The speaker is so captivated by the adornment of her eyes that he loses all sense of self and purpose. He feels that even the supposed protection or shelter (the 'wings of the cage') provided by her presence or glance is useless to him. It's a beautiful depiction of surrender to beauty, where the senses are utterly overwhelmed.