I do actually believe in the power of prayer and / or positive thought not least because anecdotally there is a lot of evidence to support unlikely outcomes being achieved after mass prayer. Now obviously you can argue that 'unlikely ' is not impossible, and of course that's true but I personally know of someone who was read the last rites because they were hours from death from cancer, only to recover and their cancer to go into remission. Ten years or so later she is still alive and running her little shop where we used to live. Now I'm sure that's medically possible, but the whole community of all religious and non religious persuasions were asked to 'pray' for her and they did, so you can draw your own conclusions, but I know if I was dying I'd be very happy if everyone was praying for me no matter how much of a long shot it was, and I suspect that's true of even the most ardent atheist if it came to it.