आत्मैवायं तथा भाति मायायोगात्प्रपञ्चवत् ।प्रपञ्चस्य विनाशेन स्वात्मनाशो न हि क्वचित् ॥ १३ ॥
In plain words
All this is the Self and nothing but the Self — it only looks like a spread-out world because māyā is in play. And when that spread-out world goes, your own Self is not destroyed with it. Not anywhere, not in any case.
Close to the Sanskrit
This is the Self alone, appearing in that manner, because of its association with māyā, as the manifold world; by the destruction of the manifold there is indeed no destruction of one's own Self anywhere.