The constitution of a person has a great deal to do with his bodily desires. Naturally a healthy person is often hungry and thirsty; and the unhealthy person, under the garb of piety, may say, 'How material one is !'
Everybody has a certain element predominant in his physical being, and other elements in a greater or lesser degree. Upon this each person's habits and desires depend.
The following elements and desires correspond:
Elements
in the breath Desires
Earth motion
Water urination
Fire thirst
Air appetite
Ether passion