Law 27
People have an overwhelming desire to believe in something. Become the focal point of such desire by offering them a cause, a new faith to follow. Keep your words vague but full of promise; emphasize enthusiasm over rationality and clear thinking. Give your new disciples rituals to perform, ask them to make sacrifices on your behalf. In the absence of organized religion and grand causes, your new belief system will bring you untold power. –Robert Greene, The 48 Laws of Power (review)
If you want to make a little money, write a book. If you want to make a lot of money, create a religion. –L Ron Hubbard