Mahat.

Mahat is the manifested universal Parabrâhmic Mind (for one Manvantara) on the Third Plane [of Kosmos]. It is the Law whereby the Light falls from plane to plane and differentiates. The Mânasaputras are its emanations.

Man alone is capable of conceiving the Universe on this plane of existence.

Existence is; but when the entity does not feel it, for that entity it is not. The pain of an operation exists, though the patient does not feel it, and for the patient it is not.