ON,
The material Gary Zukav teaches leaves so much room for subjectivity that I don't know how anyone could follow it. This leads me to believe it would be very easy to have it used in a coercive manner, as a therapy cult would do.
The following link explains some of the reasons why Zukav's work "opens the door for evil." It is from a Christian perspective, however, the author makes many good points, which could be useful in understanding other groups, such as Landmark and new age type cults. From Alan Watts to present day holistic practitioners, the author describes the problem with the concept of there being no right and no wrong, of being compassionate when in fact the recipient of our compassion "chose" his or her situation which we have no business judging.
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www.watchman.org]