Hi Eric. How about spiritual-based explanations for physical exercises?
Spirit is spirit, mind is mind, body is body. They're always connected but how often are they in harmony?
Of course you can analyze the physical effect but by limiting yourself to the physical only then you may never find the real why.
Just being aware that there is a mental aspect and a spiritual aspect means that as you train and come across realizations then you can acknowledge them for what they are and gain a deeper understanding of what you are doing no?
I am happy to discuss this line of thinking further, but to make sure we are talking about the same things, could you explain your position on what spirit, mind, and body are? It will become very messy if we don't have a similar vocabulary to start from.