This life of continual rise and fall and of continual changes is like running water, and man identifies himself with this running water, although in reality he does not know what he is. For instance, if a man goes from poverty to riches and then those riches are taken away from him, he laments; and he laments because he does not remember that before having those riches he was poor, and that from that poverty he came to riches. If one considers what one's fancies through life have been, one will find that at every stage of development one had a particular fancy; sometimes one longed for certain things and at other times one did not care for them. If one can look as a spectator at one's own life, one will find that it was nothing but an intoxication. What at one time gives man great satisfaction and pride, at another time humiliates him; what a person enjoys at one time, troubles him at another time; what at one time he values greatly, at another time he does not value at all.