A buddha laughs too, but his laughter has the quality of a smile. His laughter has the feminine quality of grace. When an ignorant person laughs, his laughter is very aggressive, egoistic. The ignorant person always laughs at others. The contented person, the person who knows life a little, laughs at himself - at the whole play of life itself. It is not addressed to anybody in particular. He just laughs at the absurdity of it all... the impossibility of it all.