I think, on balance, we should all be able to agree that both believing and disbelieving in a theistic God can be comforting and not.
It's surely comforting to believe some beneficent, omnipotent force has everything under control, so things ultimately have to turn out OK. And that there is a life after death where we can, if we choose, live well and maybe see our loved ones again. But I'm sure it can be the opposite to think of Judgement and the difficulties of having to live your life by that deity's edicts, and the possibility of others we love not experiencing heaven.
Similarly, it's not comforting to think that us flawed and finite human beings are the only ones that can sort out our huge problems, and that once someone dies, that's it. But I suppose there is some comfort in the knowledge that we don't have to make an effort to believe a certain set of things, nor does an ultimate and horrific punishment feature in moral issues of how we live our lives.
By the way, I'm not picking on you, wanderingone, it's just that yours was the last post in this discussion about what's comforting.