From what humble dust has come this one, whose countenance is worthy of receiving the pure praise of the rose?

This couplet is a beautiful compliment on profound inner beauty. The poet asks: From what kind of dust has this seemingly simple person emerged? The answer is that their inherent quality is so pure and elevated that it deserves the sacred fragrance (safa) of roses, a fragrance usually reserved for the divine or the exceptionally beautiful. It praises someone whose outer appearance belies their deep, noble spirit.