The second quarter is Taijasa, whose place is the state of dream, conscious of the internal, of seven members and nineteen mouths, enjoying the subtle.

The second part of Oṃ is U. It corresponds to the dream state (svapna-sthāna).

Taijasa (tejas = light, splendor): the shining one, the vital principle in the dream state. It is antaḥprajña — conscious of the internal, not of external objects but of mental impressions.

In the dream state, consciousness withdraws from external senses and operates exclusively through the mind (manas). Here worlds constructed by one’s own psyche are experienced: the dream space is unlimited, not subject to physical laws.

Seven members and nineteen mouths: the same as Vaiśvānara, but operating at the subtle (sūkṣma) level rather than the gross (sthūla). The instruments are the same, but detached from physical organs.

Praviviktabhuk (pravivikta = subtle, particular; bhuj = to enjoy): the one who feeds on the subtle. In dream sleep, experience is of mental forms, desires, fears, archetypes — the content of the personal and unconscious.

Taijasa represents a deeper level of identification, but still dual: there is a dream observer separate from what is observed in the dream. It is not liberation, but a step inward.

The practice of yoga seeks to become familiar with this subtle dimension so as not to lose consciousness when crossing the threshold of sleep.