ब्रह्मस्थापनम्Seating the Brahmā of the rite
Verse 30
गृहीत्वा कुशपत्रैकं ह्रीँ निरस्तः परावसुः । इत्युक्त्वाग्नेर्दक्षिणस्यां निक्षिपेदुत्करादिना ॥ ३० ॥
gṛhītvā kuśapatraikaṁ hrīm̐ nirastaḥ parāvasuḥ | ityuktvāgnērdakṣiṇasyāṁ nikṣipēdutkarādinā || 30 ||
Translation
takes a single blade of kuśa from the seat prepared for Brahmā, says "hrīṁ nirastaḥ parāvasuḥ", and throws it, with the refuse and the rest, to the south of the fire.
Word by word
- gṛhītvā
- having taken
- kuśa
- of kuśa
- patra
- a blade
- ēkaṁ
- one
- hrīm̐
- hrīṁ
- nirastaḥ
- (nirastaḥ) is driven out
- parāvasuḥ
- Parāvasu
- iti
- thus
- uktvā
- having said
- agnēḥ
- (agneḥ) of the fire
- dakṣiṇasyāṁ
- to the south
- nikṣipēt
- (nikṣipet) he should throw
- utkara
- the refuse
- ādinā
- with the rest
Meaning
The mantra means "hrīṁ, Parāvasu is driven out". Parāvasu is the priest of the asuras, the hostile counterpart of the Brahmā; the blade from the Brahmā's seat stands for him, and throwing it out to the south, with the utkara (sweepings and refuse), clears the seat of any hostile presence before the true Brahmā sits.

Commentary
Hariharānanda Bhāratī’s Sanskrit commentary, translated
See the commentary on verse 29.