I question atheism because I just don't know. I think there are other beings and possibly an afterlife. Whether it is angels or demons or a "god" or beings from other planets I just don't know. I believe my grandparents have visited me from another realm.
All I know is I have no interest in EVER joining another religion. If there is a god I suppose he'll deal with when the time comes. I try not to worry too much about it. If he's loving, he will understand. If not, well I guess I am toast.