Besides these three experiences there comes a fourth experience to those who search after it. Why does it not come to everybody? It is not that it does not come to everybody, but everybody cannot catch it. It comes and slips away from a person, and he does not know when it came and when it went. In the life of every man there is a moment during the wakeful state, a moment when he rises above all limitations of life, but so swiftly does it come and go, in the twinkling of an eye, that he cannot catch it, that he does not realize it.