In English
(activity) is primarily movement, motion. Movement results in energy and matter is but condensed energy. Ether, air, fire, land, water - all are the cause as well as the consequence of this incessant movement. All things that move are active, engaged in . To live is to change, to move; you may not move the entire body or any of its parts, but still, movement is taking place in you. Food is being digested, blood is being circulated, air is being drawn in, analysed, absorbed and exhaled, impressions are welcomed or resisted and conveyed or rejected.