This book provides an extensive guide on the spiritual and psycological effects of Aromatherapy, but not only that. It proposes a merging of Aromatherapy with the oriental healing system based on the ying yang and elements theory. As a Feng Shui practicioner and a professional Aromathepist, I found this book deeply moving.
As other books, It gives very helpful blending hints and recipes. The new aspect, though, talks about the oils's effects on the human Qi (energy). It effectivelly discusses the oil's main element (fire, water, earth, metal, wood), in relation to the emotional aspects that the elements spring in the psyche, and the specificaly related organ.
Yes, the elements healing system part may seem basic for people that have workng with oriental medicine, but it is wonderfully explained for the newcomer. I feel this book has helped me to take my practice a bit further. I needed something more than the chemical aspects of the oils (I have several books on those), and this books was a wonderful answer to that.