Vital energy (Prana shakti)

Vital energy (Prāṇa-shakti) is the vital life sustaining energy of both the individual body and the Universe.

There are five types in relation to a person:

1. Energy for the activity of inhalation (prāṇa).
2. Energy for the activity of exhalation and speech (udan).
3. Energy for the activity of the stomach and intestines (saman).
4. Energy for the voluntary and involuntary movements of the body (vyān).
5. Energy for urination, excretion, ejaculation, childbirth, etc. (apan).