it's called 'faith'

You either got it, or you haven't - simple or that. Doesn't matter what or any religion one follows it's all about a believe in something. Could be a believe that when you pop your clogs that's IT - could be belief in reincarnation.

It's a belief in something ANYTHING which keeps us mortals going.

Can't just sit around 'wondering' what happens after you die, can you ... gotta think up something reasonable - it's only human