A small child will be afraid of the dark at bedtime. It is an unfounded fear. You can explain to the child that he or she is a safe as could be tucked in bed, but reason is usually not a satisfactory method of dealing with the child's fears. A 7.5-watt night light is invariably the answer. A small little bulb fills the void with sufficient light to dispel the manifestations of a lack of light and its symptom, the fear.
Health is the entity, something to be attained.
Or perhaps more technically, life is the entity. Life and health are in a sense synonymous terms. We have been able to measure the absolute aspect of life. Science can determine with a fairly good degree of certainty if a person is alive or dead. What we are alluding to is that life is the entity.