Maybe it's just me but I think mostly everyone misunderstood what was meant by my post.
What I meant was why people used their beliefs as a reality, such as a way to live an ideal life. If you viewed life as having no meaning, then why keep continuing your life. Are you continuing your life merely out of habit? Just keeping up with the daily drudgery of day to day living, and people also use their beliefs to demean others if you do not believe the same way as they do or in the same manner (and earlier in history, you could be sentenced to death, take Galileo Galilei who confirmed the Copernican theory of the solar system, although he did change his beliefs when he was almost labeled a heretic). That was what I meant by my post, although the water crystal study doesn't get my vote, his experiments are highly susceptible to selection bias and confirmation bias and he says he is not a scientist. Although, who knows if it can be reproduced because I haven't seen an actual study of anyone who has tried it.