Upon hearing of the distress of a burnt heart, fire has spread throughout the entire body.

This profound couplet captures the devastating effect of emotional pain. Mir Taqi Mir is saying that merely hearing about the sorrow of a burning heart is enough to ignite a fire throughout the entire body. The pain isn't just mental; it's a physical, consuming agony. It speaks to how deep emotional wounds can manifest in the most tangible ways, turning sorrow into a burning reality.