Kanda is situated between the anus and the root of the reproductive organ. It is like the shape of an egg. It is the centre of the astral body. The Yoga-Nadis spring from Kanda. Nadis are the astral tubes made up of astral matter. They carry Pranic currents. There are 72,000 Nadis. Of these, three are most important. They are Ida, Pingala and Sushumna.
By Swami Sivananda, from the Book Amrita Gita. Swami Sivananda lived from 1887-1963. He was one of the great Yoga Masters of the 20th Century who made Yoga available to a great public. Copyright of the texts of Swami Sivananda The Divine Life Society Rishikesh