It does Rainbow, you are exactly right, it can be a very powerful tool in helping you gain and maintain your physical and mental health.
Why is it not more common place? because it is seen as alternative and anything that is alternative is always viewed with some scepticism, the pharmacology aspect of medicine has put us in a position that we have to prove everything, and if it can not be proved then it means it must not work. Yet that is only one aspect of the story. To prove something costs millions of pounds. it is not good enough for people to say 'it worked for me' and in my opinion some things go beyond scientific proof.
For me, I have the attitude of what harm can it do? can I afford to practice and see if it works? if I can then I am open to anything, and have always been pleasantly surprised.