It seemed implied.
The kind that doesn't really think anything is good or bad, per se, since those are inventions of man. I dunno, a friend taught me about it, can't really explain it.
EDIT: Doesn't focus on what happens after death, or how to get into paradise. It says more than anything natural is pure, and so cannot harm the...thing (Universe? World? Basically just existence), and anything unnatural is impure, and has a potential to do harm to it.