Rohit, my batchmate in COEP, read the Dil Se post and mailed me about how he loved the movie too. He said the official site of the movie explained how according to ancient Arabic literature, love passes through 7 stages, and that the story of Dil Se moves through these seven stages. The stages are -


Attraction
Infatuation
Love
Reverence
Worship
Obsession
Death!


Read more here, the official website of the movie.

In fact if you look at the couplets along with each stage, you realise they are translations of lines lines from Satrangi Re.