In singing, the emotion as heard by the listener is due to a complex interaction of factors. These factors are:
Of course, the feel of moving the air around is done with our imagination and conscious mind which sends appropriate command information to the subconscious. All must be well tuned pre-phonatorily which means that functional vocal work is done correctly over and over so as to condition the muscles to healthily respond. Then, the subconscious mind will accomplish the feat; calling upon and energizing muscles which give us the feel of air being shaped in a way that we can move around according to our imagination. This shaped air becomes soundwaves infused with mental nervous energy that reflects to the listener a sound full of emotional content.