I keep destroying the realm of my heart, squandering it away on nothing but mere glances and sighs.

Here, the poet observes his own ruin with a poignant, helpless self-awareness. He imagines his heart as an entire inner realm—'duniya-e-dil'—which he is steadily squandering away on nothing more than fleeting stolen glances and heavy, sorrowful sighs. It reflects the bittersweet tragedy of deep love, where the lover fully recognizes the destruction of his peace, yet surrenders to it unconditionally.