I've been both religious-ish and agnostic (agnostic at present) but the after-death thing never really affected me at any time. I like being a good person because I believe it's good to be good. Doesn't matter if it's self-referential. Me, myself and I is equally absurdly self-referential. I could be reincarnated. I could go to heaven. I could be dust in the wind. I could live on in a computer. I could live on, fragmented within the consciousnesses (patterns/whatever) of those who i had contact with and in all cases: I don't know. Hence: agnostic. I could pick any of the above or none of the above or something else and I still wouldn't change.