Nadi is a Sanskrit name which is define a term for the channels (nerve, blood vessel, pulse) through which, in traditional Indian medicine and spiritual science, the energies of the the physical body, the subtle body and the causal body are said to flow.

All text explains that there are a large amount of nadis present in the human bodies, some claims hundred of thousand, some millions. In regards to kundalni yoga there are three important nadis

1. Ida (lies to the left of the spine)
2. Pingala (right side of the spine)
3. Sushumna (runs along the spinal cord in the center, through the seven charkras.

Namaste

Master Praveen Kumar Verma