अहंकारादि कार्यं यदनात्मकमसंख्यकम् ।
येनावगम्यतेऽनात्मज्ञानं तदवधार्यते ॥ ४ ॥
What to the non-Self are the uncountable effects of egotism, etc.,
This is placed down, by which the wisdom of the non-Self is intelligible.
Commentary
Here the wisdom of the non-Self is described and is to be understood as being just the opposite of Self-Wisdom. This wisdom of the non-Self is the conditioning referred to in verse one, while wisdom of the Self is unconditioned wisdom.
Seeing duality produces conditioned wisdom and seeing non-duality produces unconditioned wisdom. In the Atmopadesasatakam (verse 38) Narayana Guru links duality with otherness and non-duality with sameness and advises us to enter into the state of sameness. Such a state is Self-wisdom.