13.16 Existing, bahih, outside- the word bahih is used with reference to the body including the skin, which is misconceived through ignorance to be the Self, and which is itself taken as the boundary. Similarly, the word antah, inside, is used with reference to the indwelling Self, making the body itself as the boundary. When 'outside' and 'inside' are used, there may arise the contingency of the nonexistence of That in the middle. Hence this is said: acaram caram eva ca, moving as well as not moving-even that which appears as the body, moving or not moving, is nothing but the Knowable, in the same way as the appearance of a snake on a rope (is nothing but the rope).
In all empirical things, moving as also non-moving, be the Knowable, why should It not be known by all as such? In answer it is said: It is true that It shines through everything; still it is subtle like space. Therefore, although It is the Knowable, tat, It; is avijneyam, incomprehensible to the ignorant people; suksmatvat, due to Its intrinsic subtleness. But to the enlightened It is ever known from the valid means of knowledge such as (the texts), 'All this is verily the Self' (Ch. 7.25.2), 'Brahman alone is all this' (Nr. Ut.7), etc. It is durastham, far away, since, to the unenlightened, It is unattainable even in millions of years. And tat, That; is antike, near, since It is the Self of the enlightened.