Faith is a great thing, and really religious people would like us to believe that faith and knowing are the same thing, but I don't believe that myself. Because there are too many different ideas on the subject. What we is this: When we die, one of two things happens. Either our souls and thoughts somehow survive the experience of dying or they don't. If they do, that opens up every possibility you could think of. If they don't, it's just blotto. The end.