If God wanted you to stand on your head, I can’t think why he allowed you to stand on two legs. In the very beginning he would have told Adam and Eve, “Just stand on your head.” And that would have been a far better strategy – by standing on their heads, I don’t think they would have reached the tree of knowledge or the tree of eternal life. But you have legs to walk with.
The scientific fact is, animals cannot create intelligence. They have brains – some animals have bigger brains than man. The dolphin has a bigger brain than you; the elephant, almost the same size brain as you. But why have elephants not been as intelligent as man? For the simple reason that the elephant cannot walk on two legs. In the circus, once in a while he sits on a stool. That is not going to help. It is certain he cannot walk on two legs for his whole life, that would be torture.
It is a very simple phenomenon: if your body is horizontal – as all animals are – then the gravitation is equally forceful all over your body. Man standing on two legs is not an ordinary thing. It is the greatest revolution that has happened in the whole of evolution.
When you stand on two feet, your heart has to pump blood against gravitation towards the head because the head needs continuously to be fed with oxygen. Only six seconds are needed – if your head does not get oxygen for six seconds, you are dead. You can be revived because your body is perfectly okay, but you will be just a vegetable; the head will be finished.
The brain has developed its delicacies – its very subtle system of nerves and cells which functions as the biocomputer, which collects all the information and stores it – because blood never comes as a flood. Only enough blood comes to keep the brain living.
The yogis have not produced anything, have not created anything, have made no contribution to the world. What have your ascetics given to the world? What have your so-called saints been doing all along, except being parasites sucking your blood? And these are the people you have been worshipping. And why have you been worshipping them? For the simple reason that you cannot stand for twelve hours on your head. Try it – even for twelve minutes it is difficult. In fact, when you first try you will fall many times; you may have a broken rib. The yogi is doing something difficult.
A man is standing naked in the snow in the Himalayas, and people come from thousands of miles to touch his feet. All that he is doing is getting frozen and dead. What is his contribution? Nobody goes to touch the feet of Albert Einstein, or Bertrand Russell, or Martin Heidegger, or Ludwig Wittgenstein – the people who have contributed to man’s knowledge immensely, who have expanded man’s vision almost to infinity. But you cannot see it, it is not something visible.
Bertrand Russell and Whitehead together wrote a book, Principia Mathematica. It takes them one hundred and sixty-five pages to prove that two plus two is really four. Who bothers to read such a book? One hundred and sixty-five pages, and the ultimate outcome is, two plus two is really four. Nobody reads that book.