Interesting (to say the least) source.

I've come accross some info that *may* be a bit more comprehensive. If you are interested, try these:
Hands of Light: A Guide to Healing Through the Human Energy Field by Barbara Brennan
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Amazon.com: Hands of Light: A Guide to Healing Through the Human Energy Field: Books: Barbara Brennan
Light Emerging: The Journey of Personal Healing by Barbara Brennan
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Amazon.com: Light Emerging: The Journey of Personal Healing: Books: Barbara Brennan
I've also recently come accross a *very* nice book which combines energy concepts with psychologic ascpects:
Eastern Body, Western Mind: Psychology and the Chakra System as a Path to the Self by Anodea Judith
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Amazon.com: Eastern Body, Western Mind: Psychology and the Chakra System as a Path to the Self: Books: Anodea Judith
Cheers!
