Vayu, Nadi & Chakra: The Subtle Body's Energy System

It specifically governs upward movement, related to functions such as breathing, swallowing, and reception (intake of sensory information and food).

It specifically governs downward movement, related to functions such as excretion, childbirth, menstruation, and the expulsion of waste.

Samāna means "equalizing" or "balancing." One of the five Vāyus (currents of life force), it is seated at the navel and governs digestion and assimilation — metabolizing not only food but breath, impression, and experience, and balancing the inward Prāṇa with the downward Apāna.

Udāna means "upward-moving." One of the five Vāyus, it is seated in the throat and head and governs all that rises — speech, exhalation, upright posture, upliftment of mood, and the ascent of awareness toward higher states of consciousness.

It specifically governs movements that spread from the center outwards and throughout the entire body, related to circulation, coordination, and overall bodily integration.

It refers to the currents of life force energy (Prana) that govern specific physiological and mental functions within the body.

In Yoga philosophy, it refers to subtle energy pathways through which Prana (life force energy) flows.

It is one of the three main Nadis (Ida, Pingala, Sushumna), flowing along the left side of the spine and associated with the left nostril.

It is one of the three main Nadis (Ida, Pingala, Sushumna), flowing along the right side of the spine and associated with the right nostril.

It is one of the three main Nadis, flowing through the center of the spine, where Ida and Pingala ultimately merge.

In Yoga philosophy, it refers to the major energy centers in the body where Prana (life force energy) is believed to enter, exit, and concentrate.

It refers to the dormant cosmic life energy believed to be coiled at the base of the spine (Muladhara Chakra).