Tat Tvam Asi 1

From The Upanishads:

That Thou Art

Tat Tvam Asi!

 

[6.8.7] Now that which is the subtle essence, the root of all things, the Ground of Being — in it all that exists has its True Self. It is Pure Being. It is the True Self, and

That thou art, O Svetaketu!

Svetaketu:

Please, father, inform me still more.

Uddalaka:
Be it so, my son.

Rivers and the sea

[6.10.1] The rivers run, the eastern (like the Ganges) toward the east, the western (like the Sindhu) toward the west. They go from sea to sea (that is, the clouds lift up the water from the sea to the sky and send it back as rain to the sea). They become one with the sea. And as the rivers, when they are in the sea, do not know "I am this or that river," [6.10.2] in the same manner, my son, all creatures, when they have come back from the realm of True Being, do not know that they have come back from that realm. Whatever creatures we consider, whether a lion, or a wolf, or a boar, or a worm, or a midge, or a gnat, or a mosquito — that they become again and again.

[6.10.3] That which is that subtle essence, in it all that exists has its True Self. It is Pure Being. It is the True Self, and
That thou art, O Svetaketu . . . .