Today,we encountere various social issues. , such as a natural disaster, war, and an economically stratified society, About That,The mass media makes a fuss each time. However, like the impermanence of the thought of Buddhism , society has repeatedly generated change from the old days. In the meaning, the society may be a change and the time of the turning point anytime. Because human beings are always exposed to crises. even if you consider only the phenomenon of society , it will be difficult to find the ideal model to overcome a crisis of the human nature. The main theme of this book is self. That's because I think it's better to start from the problem which forms inside the oneself first than a social phenomenon outside the oneself.