>>17955185
>Zoroastrianism
Human mystics have been 'remembering' the truths for hundreds of thousands of years. They were passed down orally and in person (shaman to adept) until the advent of writing. Even when Buddha was teaching, India didn't have writing, but complex memory techniques for oral transmission. There's research into whether the Greeks who travelled to India with Alexander and stayed to become Buddhists were actually the ones to record the Sutras, since Greeks had an obsession with writing everything. Socrates argued against writing too as making people boneheaded, which is why he wrote nothing.