Mind body is bigger and subtler than the energy body. The mind body grows when you face, encounter situation on your own and bring your own energy to solve them. Observe the thoughts coming and going, do not get attached with it. Attracted to ill thought many catch illness. When mind is disturbed, just let it be, give it a little time, the mind will settle down on its own. you don’t have to put in any effort to calm the mind, it will happen, it is effortless.