Isometrics but for energy, thoughts as well

 Watching a bioneer video on isometrics and Bruce Lee techniques he discusses static vs moving techniques. Strengthening position at one point helps get past that blockabe in say a weight press by just holding at that position isometripcally. I see similarity to my energy work. When one dances or moves dynamically on a physical job one has muscle and energy and mental flow. Statics on the other hand can be a fixed yoga position, an isometric weight holding or holding a thought or a framed picture in a meditation. Also in energy work, when chi or kundalini is activated one can hold intense energy by concentrating on a chakra or any body part really. Later the energy flow through that area can be much higher as if you had done a muscle type training in the gym with it isometrically. A couple days ago I tried tensing all my muscles very highly and this really increased the muscle flow. At yoga session end we are told to do this with each muscle group and then the whole body to relax. So at mental, physical muscular, nervous energetic levels we can use isometrics vs. dynamic exercises to increase our capabilities to concentrate on one thing or mimagine a flow of events, to move easier or maintain a difficult position or to maintain a strong feeling( in our hearts for example) or to have a strong whole body energy flow.