The Ocean of Mantras

"Salutation to the Yogapitha throne of yoga of Vagisha and Vagishvara."
The seat-mantra starting with Maya Hrim is for them; with that, one should designate the seat. (115)
One should worship those two with the Tara Om and Maya Hrim using offerings such as incense.
In the Vaishnava fire sacrifice, one should worship Lakshmi-Narayana. (116)
From a sun-crystal or from the house of a Vedic scholar,
One should bring the fire into a vessel covered by another vessel. (117)
Taking that vessel with the Astra weapon mantra, one should uncover it with the Varma armor mantra.
With the Astra mantra, one should discard the flesh-eating portion in the south-west direction. (118)
Holding [the vessel] in front with the root mantra, one should then perform the purifications.
Performing the aforementioned viewings and sprinkling with a little water, (119)
Thinking of the identity of the fire with the Supreme Soul and the gastric fire,
One should unite the consciousness from the fire-seed. (120)
Having empowered the fire with the Tara Om, and with the nectar and the Dhenu-mudra cow-gesture,
The mantra-knower should immortalize it and protect it with the Astra mantra. (121)
With the Avagunthani-mudra veiling-gesture, one should veil it with the Kavacha armor mantra.
Then, one should move the fire above the pit three times while reciting [the mantra]. (122)
Thinking of it as bathed in the nectar of the bed, wearing blue lotuses,
Being enjoyed by the deity, one should think of it in the Yoni-mandala womb-circle. (123)
A manicule points to the following line: With the thought of the Lord, one should place the fire in front of oneself, touching the ground with one's knees while reciting the root and nine-syllable mantras (124).

The 'Astra' is 'Phat'; the 'Varma' is 'Hum'; the 'Bhumandira' is the square (112-117). The 'flesh-eating portion' refers to the portion of the fire that is gross; it is discarded with the 'Astra' mantra (118-119). The 'fire-seed' is 'Ram' (120). 'Sudha' is the 'Vam' seed; the 'Dhenu-mudra' is described later (121). The 'Avagunthani' is described later; the 'Kavacha' is the 'Hum' seed (122-124).