Dr. Sallaz: From where it comes, our poor human knowledge cannot gain something precise about it. We must believe it—it comes from very high—but to explain it scientifically is completely foolish. That is our opinion. And further, as I said to you when looked at everywhere, if I take India, explain it coming here, that... I received it about ten or twelve years ago. That is what the Christians would speak about, a mystery, something extraordinary. I received from a holy man in India, with which I was corresponding from time to time. Without asking, I received a big book in Sanskrit. I could not understand a word about it. Well, I put it aside preciously...
Prabhupāda: What is that book?
Dr. Sallaz: It was the Āyurvedic collection. The old Āyurvedic medicine. This was this book. And I learned about it only one year ago because a professor of Sanskrit from India had it come from India to Europe and he's... Paris, I believe. He was a professor of Sanskrit. And showed this book. And he said, "It is marvelous. You cannot find it anymore. It is the old Āyurvedic medicine." And this I had for ten years without knowing what.
Prabhupāda: So we are very pleased that you are accepting that the life comes... Life is energy. Now, which is...
Dr. Sallaz: We give it a name, energy. It is much higher.
Prabhupāda: No, it is energy, exactly the name. Because we say prakṛti. Prakṛti means energy, nature, nature. Just like it is said in the Bhagavad-gītā, apareyam itas tu viddhi me prakṛtiṁ parām. You find out this verse. (Yogeśvara translates.)