With every passing breath, countless sorrows pass over my heart, and what endless cruelties the beloved inflicts upon my writing.

This couplet captures a relentless ache that renews itself with every breath you draw. The poet laments how suffering is not merely a passing phase, but an endless cycle of trials etched into existence. By speaking of tyrannies wrought on 'what is written,' it suggests that destiny or the beloved takes cruel pleasure in rewriting heartbreak, line after painful line.