Hydrogen and Oxygen when combined by chemical force, appear in the gross form of water. Water can never be separated from hydrogen and Oxygen, which are its subtle component parts. Its exist ence depends upon that Of its component parts, or in other words, upon its subtle form. If the subtle state changes, the gross manifestation will also change. The peculiarity in the gross form Of a plant depends upon the peculiar nature Of its subtle form, the seed. The peculiar nature of the gross forms in the animal kingdom depends upon the subtle forms which manifest variously in each Of the intermediate stages between the microsc0pic unit of living matter and the highest man. The gross human body is closely related to its subtle body. Not only this, but every movement or change in the physical form is caused by the activity and change Of the subtle body. If the subtle body be affected Or changed a little, the gross body will also be affected similarly. The material body being the expression Of the subtle body, its birth, growth, decay and death depend upon the changes Of the subtle body As long as the subtle body remains, it will continue to express itself in a corresponding gross form.