The breath makes a circuit through the body, and the channel through which it makes the circuit is the spine. The mystics give this channel great importance; they call it the serpent. They picture it as a serpent holding its tail in its mouth. In almost all symbols the serpent represents the channel of the breath. In the terms of the Yogis it is called Kundalini. When this channel is made clear by the method of breathing then this is not only a help to the physical health but it also opens up the faculties of intuition and the doors that are within, where lies the real happiness of man. In order to clear this channel of all that blocks the way one must follow the rules of mystical ablutions and of rhythmic breathing.