The once lush eyebrows, now dry, indicate that all the blood remains in the heart, yet nothing is left.

This poignant couplet speaks of profound emotional exhaustion. The poet suggests that the tears (the 'blood' of the eyelids) that once flowed for the beloved, and which were kept in the heart, have completely dried up. It’s not just about the loss of tears, but the realization that even the pain itself has faded, leaving nothing tangible in the heart. It captures the quiet devastation of love that has simply run its course.