I'm not familiar with that book in particular, but have read many books at least touching on the subject. i have mostly just come to the conclusion that if we are to survive as a species, we must embrace the duality that is existence and begin to work with it. i mean, if we don't, we will die when the sun eventually goes supernova. i think transcending the "good or bad" thought/language/actions paradigm we are in now is the key for a conscious species to evolve and survive.