content: This is the first book I read that can offer ordinary people with extraordinary power to overcome unimaginable difficulties. If one is equipped with such power, he becomes invincible. Such power is not money, ranks, social status, and etc. Instead, it is "man's deepest desire to search for meaning and purpose". That desire will not only shape how one will lead his life, but also make all troubles around him less upsetting compared to the meaning of life. Most of all, he is happy no matter what happens.