Another reference of 'Tat Twam Asi' is found in 'Sarva-Sara' upanishada. "And Ananta, the Infinite, (remaining in the same manner) as (does) clay in modifications of clay, as gold in modifications of gold, as thread in fabrics of thread, the antecedent, all-pervading Consciousness, that is in all phenomena of creation beginning with the Unmanifested, is called the Infinite. And Ananda, Bliss – the essence of the consciousness of happiness, the ocean of measureless bliss, and the state of undifferentiated happiness is called Bliss. That, of which the above fourfold nature is an indication, and which is permanent in all space, time, substance, and causation, is called the Entity of “That” (Tat) Paramatman, Supreme Self, and Para-Brahman, or the Highest Brahman. Distinguished from the Entity of “Thou” (when it appears to be) possessed of attributes, as well as from the Entity of “That” (when it appears to be) possessed of attributes, that which is all-pervading like the sky, subtle, whole by itself, pure Existence, the Entity of “Art” (Asi). Self-luminous, is spoken of as the Atman; the Entity of “not-That”, also is spoken of as Atman. That which is beginningless, fruitful, open to both proof and disproof, neither real nor unreal, nor real-unreal – non-existent, when, because of the immutability of its own substratum, the cause of change is ascertained; — existent when it is not so ascertained – (thus that) which is undefinable, is called Maya.