Why "This love" and not "My love"? Because "My love" implies possession. "This love" implies experience. It is bigger than you. It flows through you, but it does not belong to you. By saying "Is pyar ko," we admit we are merely custodians of a feeling too large for our chests. We are holding it for someone else, hoping they hold it gently.
In Hindi-Urdu cinema and poetry, these two words usually begin a sentence of sacrifice. They are followed by "Kya naam doon?" (What name should I give it?) or "Hum kya dein?" (What should we give it?). is pyar ko
Keep writing your unfinished sentence. Keep loving without the guarantee of a reply. That is the purest draft of all. What would your sentence be? Finish it in the comments. Why "This love" and not "My love"