Pranamaya Kosha:

The Pranamaya Kosha is the sphere of our vital life energies. This sheath mediates between the body on one side and the three sheaths of the mind (outer mind, intelligence and inner mind) on the other and has an action on both levels. It meditates between the five gross elements and the five sensory impressions.

The best English term for the Pranamaya kosha is probably the "vital sheath" or "vital body," to use a term from Sri Aurobindo's Integral Yoga. Pranamaya kosha consists of our vital urges of survival, reproduction, movement and self-expression, being mainly connected to the five motor organs (excretory, urino-genital, feet, hands, and vocal organ).

Most of us are dominated by the vital body and its deep-seated urges that are necessary for us to remain alive. It is also the home of the vital or subconscious ego which holds the various fears, desires and attachments which afflict us. We most of our spend our time in life seeking enjoyment through the vital in the form of sensory enjoyment and acquisition of material objects.

A person with a strong vital nature becomes prominent in life and is able to impress their personality upon the world. Those with a weak vital lack the power to accomplish much of anything and have little effect upon life, usually remaining in a subordinate position. Generally people with strong and egoistic vitals run the world, while those with weak vitals follow them. Such a strong egoistic vital is one of the greatest obstacles to the spiritual path.

A strong vital or Pranamaya kosha, however, is important for the spiritual path as well, but this is very different than the egoistic or desire oriented vital. It derives its strength not from our personal power but from surrender to the Divine and its great energy. Without a strong spiritual vital we lack the power to do our practices and not fall under worldly influences. In Hindu mythology this higher Prana is symbolized by the monkey God Hanuman, the son of the Wind, who surrendered to the Divine in the form of Sita-Rama, can become as large or small as he wishes, can overcome all enemies and obstacles, and accomplish the miraculous. Such a spiritual vital has energy, curiosity and enthusiasm in life along with a control of the senses and vital urges, with their subordination to a higher will and aspiration

The Five Pranas

Pranamaya kosha is composed of the five Pranas. The one primary Prana divides into five types according to its movement and direction. This is an important subject in Ayurvedic medicine as well as Yogic thought.

Prana

Prana, literally the "forward moving air," moves inward and governs reception of all types from the eating of food, drinking of water, and inhalation of air, to the reception of sensory impressions and mental experiences. It is propulsive in nature, setting things in motion and guiding them. It provides the basic energy that drives us in life.

Apana

Apana, literally the "air that moves away," moves downward and outward and governs all forms of elimination and reproduction (which also has a downward movement). It governs the elimination of the stool and the urine, the expelling of semen, menstrual fluid and the fetus, and the elimination of carbon dioxide through the breath. On a deeper level it rules the elimination of negative sensory, emotional and mental experiences. It is the basis of our immune function on all levels.

Udana

Udana, literally the "upward moving air," moves upward and qualitative or transformative movements of the life-energy. It governs growth of the body, the ability to stand, speech, effort, enthusiasm and will. It is our main positive energy in life through which we can develop our different bodies and evolve in consciousness.

Samana

Samana, literally the "balancing air," moves from the periphery to the center, through a churning and discerning action. It aids in digestion on all levels. It works in the gastrointestinal tract to digest food, in the lungs to digest air or absorb oxygen, and in the mind to homogenize and digest experiences, whether sensory, emotional or mental.

Vyana

Vyana, literally the "outward moving air," moves from the center to the periphery. It governs circulation on all levels. It moves the food, water and oxygen throughout the body, and keeps our emotions and thoughts circulating in the mind, imparting movement and providing strength. In doing so it assists all the other Pranas in their work.

The five Pranas are energies and processes that occur on several levels. However we can localize them in a few key ways. Prana Vayu governs the movement of energy from the head down to the navel, which is the Pranic center in the physical body. Apana Vayu governs the movement of energy from the navel down to the root chakra. Samana Vayu governs the movement of energy from the entire body back to the navel. Vyana Vayu governs the movement of energy out from the navel throughout the entire body. Udana governs the movement of energy from the navel up to the head

As a simple summary we could say that Prana governs the intake of substances. Samana governs their digestion. Vyana governs the circulation of nutrients. Udana governs the release of positive energy. Apana governs the elimination of waste-materials.

This is much like the working of a machine. Prana brings in the fuel, Samana converts this fuel to energy, Vyana circulates the energy to the various work sites. Apana releases the waste materials or by products of the conversion process. Udana governs the positive energy created in the process and determines the work that the machine is able to do.

The key to health and well-being is to keep our Pranas in harmony. When one Prana becomes imbalanced, the others tend to become imbalanced as well because they are all linked together. Generally Prana and Udana work opposite to Apana as the forces of energization versus those of elimination. Similarly Vyana and Samana are opposites as expansion and contraction.

How Prana Creates The Physical Body

Without Prana the physical body is no more than a lump of clay. Prana sculpts this gelatinous mass into various limbs and organs. It does this by creating various channels or Nadis, through which it can operate and energize gross matter into various tissues and organs.

Prana Vayu creates the openings and channels in the head and brain down to the heart. There are seven openings in the head, the two eyes, two ears, two nostrils and mouth. These are called the seven Pranas or seven Rishis in Vedic thought. Udana assists Prana in creating the openings in the upper part of the body, particularly those of the mouth and vocal organs. The mouth, after all, is the main opening in the head and in the entire body. It could be said that the entire physical body is an extension of the mouth, which is the main organ of physical activity, eating and self-expression.

Apana Vayu creates the openings in the lower part of the body, those of the urino-genital and excretory systems. Samana Vayu creates the openings in the middle part of the body, those of the digestive system, centered in the navel. It opens out the channels of the intestines and the organs, like the liver and pancreas, which secrete into it. Vyana Vayu creates the channels going to the peripheral parts of the body, the arms and legs. It creates the veins and arteries and also the muscles, sinews, joints and bones.

In summary, Samana Vayu creates the trunk of the body (which is dominated by the gastro-intestinal tract), while Vyana Vayu creates the limbs. Prana and Udana create the upper openings or bodily orifices, while Apana creates those below.

Prana however exists not just on a physical level. The navel is the main vital center for the physical body. The heart is the main center for the Pranamaya Kosha. The head is the main center for Manomaya kosha.

Prana and the Breath

Breathing is the main form of Pranic activity in the body. Prana governs inhalation. Samana governs absorption of oxygen that occurs mainly during retention of the breath. Vyana governs its circulation. Apana governs exhalation and the release of carbon dioxide. Udana governs exhalation and the release of positive energy through the breath, including speech that occurs via the outgoing breath.

Prana and the Mind

The mind also has its energy and Prana. This derives from food, breath and impressions externally. Prana governs the intake of sensory impressions. Samana governs mental digestion. Vyana governs mental circulation. Apana governs the elimination of toxic ideas and negative emotions. Udana governs positive mental energy, strength and enthusiasm.

On a psychological level, Prana governs our receptivity to positive sources of nourishment, feeling and knowledge through the mind and senses. When deranged it causes wrong desire and insatiable craving. We become misguided, misdirected and generally out of balance.

Apana on a psychological level governs our ability to eliminate negative thoughts and emotions. When deranged it causes depression and we get clogged up with undigested experience that weighs us down in life, making us fearful, suppressed and weak.

Samana Vayu gives us nourishment, contentment and balance in the mind. When deranged it brings about attachment and greed. We cling to things and become possessive in our behavior.

Vyana Vayu gives us free movement and independence in the mind. When deranged it causes isolation, hatred, and alienation. We are unable to unite with others or remain connected in what we do.

Udana gives us joy and enthusiasm and helps awaken our higher spiritual and creative potentials. When deranged it causes pride and arrogance. We become ungrounded, trying to go to high and lose track of our roots.