Everything begins from the subtle. The most subtle element is the spirit soul, and little grosser than the spirit soul is the intelligence. And little grosser than the intelligence is the false ego identification. And little grosser than the false..., intelligence, is the mind. And from mind, then the senses. And the senses, next the grosser element is the body. So we have to analyze according to the śāstra, because it is not possible. Suppose the modern scientist is given to find out where is the soul in this body. It is not possible.
So we may be very proud of advancement of knowledge, but actually we are not yet advanced, so far material science is concerned, to understand the basic principle of the moving force which is moving this body, the... On account of the presence of the soul, we have got so much intelligence, we have got so much thoughtful, psychological effect. So many things wonderful they are. But as soon as the soul is not there, everything collapses. So the Buddhist theory that the intelligence or consciousness takes place at a certain point of material mixture... But that may be an argument, but actually it is not a fact. Any amount of material mixture, you cannot produce soul. They have produced so many things by material mixture, but nobody has produced. In India, of course, we heard so many news that "In America they have produced life in chemical laboratory." And sometimes they say, "In Russia they are trying." But this is not possible. Nobody has found. And greatest scientists, they have admitted that the problem of life is beyond the scope of material science.