Something needs to change! Globally and in our own minds, in personal lives, in relationships with others, and in our relationship with nature and the environment. However, this is easier said than done. For sustainable change, a reversal of thinking and feeling is necessary – Metanoia. Siegfried Essen demonstrates a way to sustainably transform obstructive thinking and negative emotions through exercises, meditations, and stories: he counters enmity, competition, and struggle, as well as powerlessness, fear, and anger, with harmony between our physical and spiritual realities. In 43 concise chapters, the book connects the original thoughts of Buddhism and Christianity to positive changes in current politics and society.