Does Thinking Prove You Exist?
Descartes said 'I think therefore I am.' Yajnavalkya went further.
Brihadaranyaka Upanishad vs Descartes. The Self cannot be an object of its own knowledge, because it is the one doing the knowing. Awareness is more fundamental than thought.
Does Thinking Prove You Exist?
In King Janaka's assembly hall at Videha, sometime in the seventh century BCE, a scholar named Uṣasta Cākrāyaṇa rose from his seat.
The hall was packed with rishis and philosophers from across the Kuru-Pañcāla heartland. The smell of clarified butter from the morning fire offering hung in the air. Outside, the Ganges plain stretched flat to the horizon under a white winter sky. Inside, the prize, a herd of a thousand cattle with gold-tipped horns, waited in a pen.
Uṣasta pointed at Yājñavalkya, the sage who had already won every round that morning.
"Explain to me the Brahman that is directly and immediately known. The Self that is within all things."
The room went quiet. Uṣasta was not asking an academic question. He was demanding something that looked impossible. Show us the Self. Produce it directly, the way you would lead a cow out of a pen and into the sun. Right now, in front of everyone.
What Yājñavalkya said next has kept philosophers busy for three thousand years. And when a French soldier named René Descartes locked himself in a heated room in Germany in the winter of 1619 and announced what he called the foundation of all knowledge, he was standing inside the same question. He just stopped one step short of where Yājñavalkya had already been.
The Upanishadic Answer
Yājñavalkya appears in the Bṛhadāraṇyaka Upaniṣad, the longest and probably oldest of the principal Upanishads, composed in the second half of the first millennium BCE. He was not a mystic in a cave. He was a public intellectual, the chief theologian at the court of King Janaka, a man who argued his doctrine in open court and won.
His teaching on the Self appears twice in the text. The first time, he is about to leave household life. He sits with his wife Maitreyī and tries to explain what he is walking toward. The second time is the debate with Uṣasta.