When you consider the central nervous system, you don’t realize that it’s possible with its maps , to cross reference the subtle body. So you don’t need another thing to justify the reality. It’s simply another way to see the same thing. But you see what before you only watched. And the difference makes the difference. The vehicle of desires and vital forces is not only an abstract model. The channels are not only internal. They are also connected with the flow of the universe. It’s like the light of essence and it’s a proof of the existence of the essence in the life of the souls, in the way of the ancient texts.