Imagine we could compare ourselves to a digital camera: the eyes are the lenses (we choose what to focus on), our beliefs are the filters (we choose what, and how information passes through), our mind is the image sensor (information gathering; how things appear to be), and our intellect (education, knowledge, level of understanding; preconception, indoctrination, interpretation, imagination) is a translator, or encoder/decoder.
The process of rewriting our story is quite taxing.
For great change to occur, it takes a certain number of the population to believe in it, or to at least have an opinion about it. There are studies on the matter of tipping points, or critical mass. Some would suggest it’s 5%, or even less, and some say it has to be over 10%.