How does time work? Simply put: unreliably. Nobody knows.

There doesn’t seem to be a correlation between how fast or slow it passes, or doesn’t. The former Provost Stark and I were from the same world, and he originally came from a time several years before mine — but it’s not like he got pulled into a rift to Thedas and vanished one day. He was still around, in my experience of the world. Indications are that life and existence goes on in some form; there might still be another you, back where you came from.