"Nature has protected the lower animal by endowing them with instincts. An instinct is a programmed perception that calls into play a programmed reaction. It is very simple. Animals are not moved by what they cannot react to. They live in a tiny world, a sliver of reality, one neuro-chemical program that keeps them walking behind their nose and shuts out everything else. But look at man, the impossible creature! Here nature seems to have thrown caution to the winds along with the programmed instincts. She created an animal who has no defense against full perception of the external world, an animal completely open to experience. Not only in front of his nose, in his umwelt, but in many other umwelten. He can relate not only to animals in his own species, but in some ways to all other species. He can contemplate not only what is edible for him, but everything that grows. He not only lives in this moment, but expands his inner self to yesterday, his curiosity to centuries ago, his fears to five billion years from now when the sun will cool, his hopes to an eternity from now. He lives not only on a tiny territory, nor even on an entire planet, but in a galaxy, in a universe, and in dimensions beyond visible universes. It is appalling, the burden that man bears, the experiential burden. As we saw in the last chapter, man can’t even take his own body for granted as can other animals. It is not just hind feet, a tail that he drags, that are just “there,” limbs to be; used and taken for granted or chewed off when caught in a trap and when they give pain and prevent movement. Man’s body is a problem to him that has to be explained. Not only his body is strange, but also its inner landscape, the memories and dreams. Man’s very insides—his self—are foreign to him. He doesn’t know who he is, why he was born, what he is doing on the planet, what he is supposed to do, what he can expect. His own existence is incomprehensible to him, a miracle just like the rest of creation, closer to him, right near his pounding heart, but for that reason all the more strange. Each thing is a problem, and man can shut out nothing."