He cannot do it all himself. Such knowledge comes only through a religion. Without religion men can only grope uncertainly toward some such understanding. He needs religion for the correct answers. Sometimes it is hard to decide.
Organized religion is needed as our teacher in such matters.
Every human being wants the answer to that question. It is the most fundamental drive within us. Indeed, all other urges are secondary to this one. The millionaire is not satisfied with his millions. He wants to bring in another oil well.