King: And who is your twenty-fourth guru?
Dattatreya: My twenty-fourth guru is a worm who was caught by a songbird and placed in its nest. As the bird began singing, the worm became so absorbed in the song that it lost all awareness of its peril. Watching this little creature become absorbed in a song in the face of death reminded me that I, too, must develop the art of listening so that I my become absorbed in the eternal sound (Aum), Naad, that is always within me.
Krishnamachari Santhanam.