In yoga, Ayurveda, and Indian martial arts, prana (प्राण]], ; the Sanskrit word for breath, "life force", or "vital principle") permeates reality on all levels including inanimate objects. In Hindu literature, prāṇa is sometimes described as originating from the Sun and connecting the elements.
Five types of prāṇa, collectively known as the five vāyus ("winds"), are described in Hindu texts. Ayurveda, tantra and Tibetan medicine all describe prāṇa vāyu as the basic vāyu from which the other vāyus arise.
Prana is divided into ten main functions: The five Pranas – Prana, Apana, Udana, Vyana and Samana – and the five Upa-Pranas – Naga, Kurma, Devadatta, Krikala and Dhananjaya.
Pranayama, one of the eight limbs of yoga, is intended to expand conscious awareness of prana.
Of these meanings, the concept of "vital air" is used by Bhattacharyya to describe the concept as used in Sanskrit texts dealing with pranayama, the manipulation of the breath.Bhattacharyya, p. 311. Thomas McEvilley translates prāṇa as "spirit-energy". The breath is understood to be its most subtle material form, but is also believed to be present in the blood, and most concentrated in semen and vaginal fluid.Richard King, Indian philosophy: an introduction to Hindu and Buddhist thought. Edinburgh University Press, 1999, p. 70.
Scholars are divided on the original meanings of prana and apana. Some, like Böhtlingk, argue that originally prana meant inbreathing, while apana meant outbreathing. Others, like Deussen, claim the opposite, stating that prana meant outbreathing and apana meant inbreathing. However, they agree that in later times, these two terms came to refer to air located in different parts of the body, with prana associated with the upper parts and apana with the lower parts.
Early mention of specific prāṇas often emphasized prāṇa, apāna and vyāna as "the three breaths". This can be seen in the proto-yogic traditions of the Vratyas among others. Texts like the Vaikānasasmārta utilized the five prāṇas as an internalization of the five sacrificial fires of a Panchagni Vidya homa ceremony.
The Atharvaveda describes prāṇa: 'When they had been watered by Prana, the plants spake in concert: 'thou hast, forsooth, prolonged our life, thou hast made us all fragrant.' (11.4–6) 'The holy (âtharvana) plants, the magic (ângirasa) plants, the divine plants, and those produced by men, spring forth, when thou, O Prâna, quickenest them (11.4–16). 'When Prâna has watered the great earth with rain, then the plants spring forth, and also every sort of herb.' (11.4–17) 'O Prâna, be not turned away from me, thou shall not be other than myself! As the embryo of the waters (fire), thee, O Prâna, do bind to me, that I may live.' (11.4). "Let prana and apana stay strong here. They must not go away from this youth. Let them sustain and strengthen his parts of the body system and, further, conduct him to live his full age of good health till fulfilment."
The Upanishads, particularly the Yoga Upanishads, discuss various breaths with specific names and functions. Prana is consistently regarded as the primary breath, akin to breath in English, while apana is associated with carrying off excrement. The Prashna Upanishad first described prana governing upper body functions and apana controlling lower functions, based on the concept of distinct airs or gases governing bodily functions. Aitareya Upanishad also support this division of breaths, associating prana with the nasal region and apana with the abdominal region.
+ Vāyus, according to the Nisvasattvasamhita Nayasutra (6th–10th century) ! Vāyu ! Location ! Responsibility | ||
Prāṇa | Head, lungs, heart | Movement is inward and upward, it is the vital life force. Balanced prāṇa leads to a balanced and calm mind and emotions. |
Apāna | Lower abdomen | Movement is outward and downward, it is related to processes of elimination, reproduction and skeletal health (absorption of nutrients). Balanced apāna leads to a healthy digestive and reproductive system. |
Udāna | Diaphragm, throat | Movement is upward, it is related to the respiratory functions, speech and functioning of the brain. Balanced udāna leads to a healthy respiratory system, clarity of speech, healthy mind, good memory, creativity, etc. |
Samāna | Navel | Movement is spiral, concentrated around the navel, like a churning motion, it is related to digestion on all levels. Balanced samāna leads to a healthy metabolism. |
Vyāna | Originating from the heart, distributed throughout | Movement is outward, like the circulatory process. It is related to circulatory system, nervous system and cardiac system. Balanced vyāna leads to a healthy heart, circulation and balanced nerves. |
When the mind is agitated due to our interactions with the world at large, the physical body also follows in its wake. These agitations cause violent fluctuations in the flow of prana in the nadis.
Many pranayama techniques are designed to cleanse the nadis, allowing for greater movement of prana. Other techniques may be utilized to arrest the breath for samadhi or to bring awareness to specific areas in the practitioner's subtle or physical body. In Tibetan Buddhism, it is utilized to generate inner heat in the practice of tummo.
In Ayurveda and therapeutic yoga, pranayama is utilized for many tasks, including to affect mood and aid in digestion. A. G. Mohan stated that the physical goals of pranayama may be to recover from illness or the maintenance of health, while its mental goals are: "to remove mental disturbances and make the mind focused for meditation".
According to Theos Bernard, the ultimate aim of pranayama is the suspension of breathing, "causing the mind to swoon". Swami Yogananda writes, "The real meaning of Pranayama, according to Patanjali, the founder of Yoga philosophy, is the gradual cessation of breathing, the discontinuance of inhalation and exhalation".
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