The poem begins by addressing the Prophet as "Mustafa" (The Chosen One) and "Jaan-e-Rehmat" (The Soul of Mercy). This signifies that the Prophet is not just a messenger, but the embodiment of God's mercy for the entire universe.
مہرِ چرخِ نبوت پہ روشن درودکلکِ جيبِ شفاعت پہ لاکھوں سلام mustafa jane rehmat pe lakhon salam english translation
مصطفٰی جانِ رحمت پہ لاکھوں سلام The poem begins by addressing the Prophet as
(Upon Mustafa, the Essence of Mercy, millions of salutations) the Essence of Mercy
Here is the famous Urdu naat (Islamic devotional poem) with its English translation.