
This is my Soul in the innermost heart, smaller than a grain of rice, a grain of barley or a grain of millet.
This is my Soul in the innermost heart, greater than the earth, greater than the aerial space, greater than these worlds.
This Soul, this Self of mine is that Brahman (“ultimate creative universal energy”).
— Chandogya Upanishad 3.14.3 – 3.14.4 ~600 BC