No one's policing their own minds more than an author. You spend a lot of time in your own head analysing what you think about things, and a philosophy comes.
Terry PratchettThe short conversation that follows eventually led to a tree religion. Its tenet of faith was this: a tree that was a good tree and led a clean decent and upstanding life could be assured of a future life after death. If it was very good indeed it would eventually be reincarnated as five thousand rolls of lavatory paper.
Terry Pratchett