I remember the nightingale of Shiraz by considering your beauty to be a rose-garden.

In this couplet, the poet looks at the beloved's breathtaking beauty and perceives it as a vibrant, blooming rose-garden. Such sublime charm naturally brings to mind Hafiz or Saadi—the legendary 'nightingale of Shiraz'—whose poetry alone possessed the sweetness to praise such a wondrous garden. It is an affectionate compliment suggesting that the beloved's grace is so extraordinary, it demands the highest language of love and artistry.