I am a long -time student of crystal healing and complementary therapies, and a trained nurse, I am a very open minded pagan, this book though is the biggest load of drivel I have ever read, some of it dangerous i.e the authour implies that it is to drive fast and carelessly because he has an amythest in his car, in the next breath discussing the grief of a man who had lost his family because of a careless driver.
The authour makes ridiculous claims such as that we would all be wiped out by aliens were it not for the likes of him and his friends ( non of whom are actually Native American) communicating with these beings (who are able to see and watch us through crystals apparently) and negotiating a little more time for us mere mortals to get our act together.
Also erronious claims about many aspects of human physiology and crystal properties all of which have been 'proven' in lab. experiments by his followers (what do you know they are all apparently scientists as well as alien communicators and born again native Americans)
My cousin is full blood Cherokee (this is where he claims this knowledge to have come from) and he thought the same as me-this man is crazy, and full of lies, don't buy this book if you are looking for useful information on crystals and their theraputic value.