By being able to think about all sorts of future possibilities we are able to experience the emotions appropriate to those possibilities as if they were present happenings. In other words, civilized man tends to be in a state of chronic worry and fear and anxiety, because he is always confronted not with the simple actuality of what is happening before him but with the innumerable possibilities of what might happen. And since, because of this, his emotional existence tends to be in a chronic state of anxiety and tension, he increasingly loses the ability to relate to the concrete world as it manifests itself to him in the actual present in which he lives. He becomes so tied up inside that, as it. were, the channels of his sensibility become blocked. He gets a kind of neurological sclerosis, a kind of inability to give himself permission to be spontaneous, to be alive with full joyous abandonment. Thus the more civilized we become, the more stuffy we get. And, therefore, the need arises for various ways of liberating ourselves from society, for entering what the Indians call vanaprastha, the life of a forest dweller. Because when a person reaches a certain point in life when he says, "I have had enough of all this. I am simply tired of making life not worth living, by constantly living through the horrors of what might happen, for the sake of efficiency and membership in the community. Let me just get away from it all for a while and find out what the score is for me, myself. I am tired of being told what I ought to believe. I am tired of being told how I ought to see, how I ought to behave, how I ought to feel. Let me find out for myself who I really am." And so, these institutions that allow one to go back, as it were, to the shaman state of religion, to get away from the community interpretation of how one ought to think and feel, have arisen in a great many cultures. And they are arising again today.