Need to be very careful how this subject is discussed as could be classed as religious.
People are free to believe in whatever they wish to believe in.
The unscrupulous will aways exploit someones' beliefs
if it will get them something.
Hope is what most people get out of their particular belief and they are more than willing to pay for it.
There is a lot more out there than we know at present. Sixth sense, ESP, maybe commonplace in the future.