The one-pointed concentration of an archer reminded Dattatreya of the importance of sattwa guna and the unruffled ekagrata of a seeker. One is reminded of the Mundaka Upanishad which states, ‘Om is the bow, atman is the arrow and the target is Brahman,’ The archer was Dattatreya's twenty-second guru.
My twenty-second guru is an arrow maker who was so absorbed in shaping his arrowheads that the king and his entire army passed without attracting his attention. Thus I learned from the arrow makes to be absorbed in the task at hand, no matter how big or small. The more one-pointed my focus, the greater my absorption, and the greater my absorption, the more subtle my awareness. The goal is subtle, and can only be grasped by subtle awareness. (Source: The Himalayan Masters: A Living Tradition by Pandit Rajmani Tigunait, PhD.)
Snake – the twenty first guru of Dattatreya