The only power of belief as far as I'm concerned is the placebo effect. Everything else associated with power of belief is delusion, IMO.
I try to maintain a view of reality, appropriated by my 5 senses, as unclouded by belief as possible. Sure, I have a model of reality and all that, but I continually try to accommodate the possibility that what I believe to be true, might be false. The reason I do this is because I'm Bi-polar and I'm very susceptible to ascribing things that aren't there (Type 1 Error).
I try to maintain a view of reality, appropriated by my 5 senses, as unclouded by belief as possible. Sure, I have a model of reality and all that, but I continually try to accommodate the possibility that what I believe to be true, might be false. The reason I do this is because I'm Bi-polar and I'm very susceptible to ascribing things that aren't there (Type 1 Error).