This book answered all my questions I was asking me for many years. It goes to the point. The exercises are simple but extremely powerful. We understand better the importance of cultivating Truthfulness, altruism, tolerance ... If anyone could seriously think about these words humanity would go to a better world ... The more we understand the importance of search Regardless, to become better the more the body is purified, we feel more lightness. Everyone does it at his own pace and according to how he understands things. An extraordinary book!