Greed, hatred, and delusion - these are the three bad roots in us. Conversely the good ones are non-greed (i.e generosity), non-hatred (love), and non-delusion (wisdom). All our troubles and suffering stem essentially from the bad roots while our joy and happiness comes from the good ones. It is important to know and understand these roots if we are going to make an end of suffering and attain true peace and happiness. This book explains in a penetrative way the nature of these six roots. It contains discourses of the Buddha on the subject together with traditional commentarial explanations.