स वा अयं पुरुषः सर्वासु पूर्षु पुरिशयोनैनेन किंचनानावृतं नैनेन किंचनासंवृ-तम् ॥ १८ ॥
In plain words
This very one is the person who lies within the body, in every body there is. Nothing anywhere escapes being covered by him; nothing anywhere is left outside what he encloses.
Close to the Sanskrit
He indeed, this person, is the dweller in the body, in all bodies. Nothing whatsoever is left uncovered by him; nothing whatsoever is left unenclosed by him.