What is the mention of flowers, O dawn, now that in autumn we have hung our hearts with both the musk and the thorn.

This profound couplet speaks to the inevitable disillusionment that comes with love. The poet questions the relevance of beauty and romance ('mention of flowers') when the season of life is fading ('autumn'). He tells the breeze that he has attached his heart not just to the sweet petals of roses, but also to the sharp pain of thorns. It's a realization that love, in its deepest form, is never purely sweet—it is inherently mixed with suffering and sorrow.