40 years devoted to the study and practice of Tibetan Buddhism have made Matthieu Ricard an essential intermediary between East and West. Scientific, Buddhist Monk, French Interpreter of the Dalai Lama, photographer and author of many texts about Buddhism and meditation. Matthieu Ricard is today one the world's expert about this subject. This film allows us to find out his thoughts, research and humanitarian, through its association Karuna-Shechen. He is a man of his time, putting his knowledge and humanist philosophy in favor of well-being and vitality of many.