अथानेनैव ये चैतस्मादर्वाञ्चो लोका-स्ता श्चाप्नोति मनुष्यकामा श्च तस्मादुहैवविदुद्गाता ब्रूयात् ॥ ८ ॥
In plain words
Now, through this very practice he attains all the worlds turned toward this realm, along with every human desire. Therefore, the udgātṛ priest who possesses this profound knowledge should indeed declare it.
Close to the Sanskrit
Now, by this very same means he attains those worlds which are turned hither from this, and human desires. Therefore indeed, the udgātṛ priest knowing thus should speak.