Sok dzin lung
The Life sustaining Wind is a Wind which resides in the head (brain). It manifests from the central channel, from the subtle Wind of the mind and governs the head and the whole body/mind system. Also called Life-span Wind, it is the life fuel energy (tshe) stored in the middle channel and the bank of life energy like oxygen in a cylinder.
It is released through the nostrils during respiration.
The breath is comprised of two components: the greater part of the breath which is the body wind (las rlung: karmic wind, meaning body breaths) and the Life sustaining Wind (srog ‘dzin rlung) more subtle and found in a smaller amount. Both come out from the central channel along with respiration.
The breath, which contains a tiny amount of the Life sustaining Wind also divides into two parts when it reaches the nostril root. One part goes to the crown chakra (brain) and is burnt there, becoming the energy which supports the consciousnesses and the continuation of the Life sustaining Wind (brain) function. The second part of the breath comes out from the mouth and nostrils. This continuous use of the life energy resource reduces its amount day by day, like a candle slowly being consumed.
Generally, the quantity of life energy in the central channel is the basic life span of the person and its body/mind force. Each person has a different amount of the life fuel energy and, according to Buddhism, this amount is determined by the previous lives’ karma. Therefore, no one else but oneself is responsible for the lifespan amount [I]. It is difficult for common people to foresee the amount of this energy.
It regulates the nervous system, brain memory and it gives thinking and analytical powers and attention. It determines the emergence of the sense of “I” and controls the body system and the functions of the organs.
It clears the mind and the sensory organs and sustains life. In short, it governs the whole head (brain) and crown chakra (psychic), and commands the entire body system. It regulates the pillar of the body or central energy channel, and the respiration function. It keeps the body/mind balanced and holds and sustains the mind and the mental functions.
Malfunction of the Life sustaining Wind
If the Life sustaining Wind functions become distorted and disturbed by wrong factors, one may lose consciousness and balance, manifest vertigo, lose control of the body/mind, have wrong perceptions, confusion, hear sounds in the head and ears, experience feelings of head emptiness, and have hallucinations. It may cause shortness of breath; difficulty of inhalation, problems in swallowing food and drink, and could even become the cause of madness.