What is the authority on which Ramana Maharshi says that the Heart is the seat of the Self or that is where the Self is realized. Sri Ramana also says at times that the Self is not physical and beyond the body. It seems like a contradiction. If the Self is the Universal Self and is everywhere, how can it be found in a physical location in the human body. This point is not clear to me. Why do we even need to talk about the Heart? Is it just not another concept that causes confusion.