Pingala Nadi in the ancient notion of the subtle body, one of the vertical channels (nadi).
The subtle body is a physiological system that is thought to
exist on a separate level than coarse matter, yet with certain similarities to
the material body.
It's shown as a series of six psychic centers (chakras) that
run nearly parallel to the spine and are joined by three parallel vertical
channels.
The corporeal abodes of Shiva (consciousness) and Shakti
(power), the latter as the latent spiritual force known as kundalini, are
located above and below these centers.
The pingala nadi is the vertical canal on the right side of the body in this delicate body image.
The pingala nadi, like the rest of the subtle body, has
symbolic correspondences; in particular, it is associated with the sun and is
therefore represented as a tawny red hue.
