In plain words
Space is everywhere, in all things, yet because it is so subtle it does not cling to the things it is in. In the same way the Self, the embodied one, is present all through the body, yet does not cling to the body. Be clear about this.
Word for word
Although space is everywhere in things, through its subtlety it remains unattached to them. Similarly, although the Self, the embodied knower, is throughout the body, it does not adhere to the body. Be clear about this.