nirvikalpa:

“Everybody takes himself and others seriously. That’s the way of the ego to exist. Start being a little more playful and you will see ego evaporating. Take life non seriously, as a joke — yes, as a cosmic joke. Laugh a little more. Laughter is far more significant than prayer. Prayer may not destroy your ego; on the contrary, it may make it holy, pious, but laughter certainly destroys your ego. When you are really in a state of laughter, have you observed? — the ego disappears for a moment. You are again a child, giggling. Again you have forgotten that you are special. You are no longer serious; for a moment you have removed your fixation.

That’s why I love jokes — they are poison to your ego! You would like me to talk about serious things: astral planes and how many bodies men have, seven or nine, and how many chakras. And every day there are questions — esoteric, occult. These are the serious people. They have fallen in a wrong company! I am not serious at all. I don’t laugh with you because that is part of telling a joke: the person who tells it has to be very serious, he cannot laugh with you. All my laughter I have to do alone. 

But my approach towards life is utterly nonserious, playful, because in my experience this is how the ego disappears. Watch when you laugh: where is the ego? Suddenly you have melted, suddenly you are liquid, no more solid, but flowing. You are not old, experienced, knowledgeable. Listen to this joke and try to find out whether the ego remains or not.” — Osho