I live merely by looking at her cheeks; my existence is fleeting (and bound to her cheeks).

The real charm of this couplet lies in the exquisite pun on the word 'aarzi'. On the surface, it means transient or fleeting, suggesting how fragile and short-lived the lover's life feels. But 'aarzi' also relates to 'aariz' (cheeks), meaning his existence is entirely tethered to the sight of his beloved's face. With effortless wit, the poet turns a tribute to beauty into a tender meditation on how love keeps us barely, but beautifully, alive.