Human consciousness shapes natural laws, these laws although not constant, evolve over long periods of time.
There are natural laws, and cause and effect scenarios that no matter what 'your' belief is as an individual self, will still be subject to the cause and effect result because of the mind-set of other-selves.
One consciousness, seperation is illusion. As long as some remain in disillusion/confusion, this will effect all other selves on some level.
Only an individual purified of all flaws can manipulate reality at will. However the one who has tapped into the mass-mind, can achieve the same results with certain levels of distortion present in each individual self. The key is one with others.