What is the chakral system and where it is originated?
It would be difficult to say that from where the first writings on Chakras came in, but there are innumerable books today on the subject. The system was not evolved in the right sense, but only came to be understood as part of the energy body. Just like the atmosphere has air in it and when it is in motion there are whirls existing, so similar is the energy body to the physical body and chakras presence in the energy body.