7. The Fourth is thought of as that which is not conscious of the
internal world, nor conscious of the external world, nor conscious of
both the worlds, nor dense with consciousness, nor simple
consciousness, nor unconsciousness, which is unseen, actionless,
incomprehensible, uninferable, unthinkable, indescribable, whose proof
consists in the identity of the Self (in all states), in which all
phenomena come to a cessation, and which is unchanging, auspicious,
and non-dual. That is the Self; that is to be known.