(To Mahima) "You explain 'Aum' with reference to 'a', 'u', and 'm' only."

Mahima: "'A', 'u', and 'm' mean creation, preservation, and destruction."

Master: "But I give the illustration of the sound of a gong: 'tom', t-o-m. It is the merging of the Lila in the Nitya: the gross, the subtle, and the causal merge in the Great Cause; waking, dream, and deep sleep merges in Turiya. The striking of the gong is like the falling of a heavy weight into a big ocean. Waves begin to rise: the Relative rises from the Absolute; the causal, subtle, and gross bodies appear out of the Great Cause; from Turiya emerge the states of deep sleep, dream, and waking. These waves arising from the Great Ocean merge again in the Great Ocean. From the Absolute to the Relative, and from the Relative to the Absolute. Therefore I give the illustration of the gong's sound, 'tom'. I have clearly perceived all these things. It has been revealed to me that there exists an Ocean of Consciousness without limit. From It come all things of the relative plane, and in It they merge again."

-- The Gospel of Sri Ramakrishna