Two young men with opposite lives from opposite sides of the world unwittingly exchange destinies as one encounters the other, and the other encounters a vision of God.
I would sum up this logline in one word – Vague.
The purpose of the logline it so we (or a potential producer, actor, director, etc) can imagine the movie, and hopefully it intrigues them enough to want to find out more. But from this logline we could imagine a thousand different versions of the movie and be none the wiser what yours was supposed to be.
Try including some specifics.