I don't know. I have never thought about it. The moment you think you are happy, you cease to be happy, don't you? When you are having fun and shouting with joy, what happens the moment you become conscious that you are joyous? You stop being joyous. Have you noticed it? So happiness is something which is not within the field of self-consciousness.When you try to be good, are you good? Can goodness be practised? Or is goodness something that comes naturally because you see, observe, understand? Similarly, when you are conscious that you are happy, happiness goes out of the window. To seek happiness is absurd, because there is happiness only when you don't seek it.Same with humility? Can you cultivate humility? If you repeat every morning, "I am going to be humble", is that humility? Or does humility arise of itself when you no longer have pride, vanity? In the same way, when the things that prevent happiness are gone, when anxiety, frustration, the search for one's own security have ceased, then happiness is there, you don't have to seek it.