The dream is but a view within the mind of the impressions that reflected on the surface of the mental-lake during the waking state. Besides, the dream-state occurs between the waking and the deep-sleep state and comes second among the three sates of consciousness. And so, ‘U’ being next to ‘A’ in the order of sounds, and also between ‘A’ and ‘M,’ it is treated as representing the dream state.
On the ‘M’ sound of ‘
A short pregnant silence is inevitable between two successive OM-s. On this silence is superimposed the idea of the fourth-state known as ‘Turiya.’ This is the state of Perfect Bliss when the individual Self recognizes its identity with the Supreme.