Healing takes place, when one is asleep or when one's eyes are closed. If one is sick, one has a deficiency of healing, therefore a deficiency of sleep. The body makes the healing of a bone, a priority, as opposed to doing other things that are not quite as important. It does not matter what is or what causes one's health problem, whether it is because of lifestyle abuse or external trauma. That is the most important thing one can do to make oneself well.
Vital energy is used up by all the activities of life.
Vital energy is used up by physical activity, by talking, by digestion, by emotions, by thinking, by seeing, by hearing, by smelling and by sex. Nerve cell fatigue or exhaustion is deep seated and much time is required to recover. It is the lowering of vital energy in the nerve cells which leads to physical and mental trouble. Close one's eyes to replenish one's nerve cells and one's nerves will get better and feel better. The actual storing up of the energy reserves or the energy sources, takes place during rest.