Remember, correlation is not equivalent to causation. The cognitive process of rumination may correspond to people given to religious thought, but that does not necessarily mean the religious thought causes the rumination.
I agree with this and in no way suggested this was the case.
My point was in response to:
Acting as if there is a heaven, whether there really is one or not, can give hope and comfort where there was none before, make people act virtuously to try and obtain entrance to paradise, etc.
Only one side of the story.