It was not any prejudice against the world that made the great ones leave the world and go to the forests and caves; they went in order to tune themselves to that rhythm in which they could experience heaven. Heaven is not a country or a continent; it is a state, a condition within oneself, only experienced when the rhythm is in perfect working order. If one knows this, one realizes that happiness is man's own property. Man is his own enemy: he seeks for happiness in the wrong direction and never finds it. It is a continual illusion. Man thinks, "If I had this or that I should be happy for ever" and he never arrives at happiness because he pursues an illusion instead of the truth. Happiness is only to be found within, and when man tunes himself he finds all for which his soul yearns within himself.