15. 'For when there is as it were duality, then one sees the other, one smells the other, one tastes the other, one salutes the other, one hears the other, one perceives the other, one touches the other, one knows the other; but when the Self only is all this, how should he see another, how should he smell another, how should he taste another, how should he salute another, how should he hear another, how should he touch another, how should he know another? How should he know Him by whom he knows all this? That Self is to be described by No, no 1! He is incomprehensible, for he cannot be comprehended; he is imperishable, for he cannot perish; he is unattached, for he does not attach himself; unfettered, he does not suffer, he does not fail. How, O beloved, should he know the Knower? Thus, O Maitreyî, thou hast been instructed. Thus far goes immortality.' Having said so, Yâgñavalkya went away (into the forest).
