Happiness is the very nature of the self; happiness and the self are not different. There is no happiness in any object of the world. We imagine through our ignorance that we derive happiness from objects.
All the texts say that in order to gain release one should render the mind quiescent; therefore their conclusive teaching is that the mind should be rendered quiescent; once this has been understood there is no need for endless reading.
When the mind that is subtle goes out through the brain and the sense-organs, the gross names and forms appear; when it stays in the heart, the names and forms disappear.
The world is so unhappy because it is ignorant of the true self. Man's real nature is happiness. Happiness is inborn in the true self. Man's search for happiness is an unconscious search for his true self.