My entire letter was burnt by the burning passion and pain described from my heart, as every single word that flowed from the pen turned out to be pure sparks of fire.

In this couplet, the poet paints the burning anguish of love through vivid hyperbole, imagining his grief as literal fire. His heart's sorrow is so intense that the pen writes not in cool ink, but in blazing sparks that consume the very paper before the message can even be delivered. There is also a brilliant wordplay on 'qalam' (pen) and 'yak-qalam' (all at once), capturing how completely irresistible passion can reduce every attempt at expression to cinders.