Calculationstubschool: pan-indian· Bṛhat Saṁhitā
House-deity by area remainder (mod 8)
cal-grhadevata-area-remainderDefinition
Commentary-reported procedure: divide the site's area by 8; the remainder names one of eight house-deities (0 = Rikta 'empty', 1 = Dhvaja 'banner', ...), each with its own asterism, used with the Moon's and the doors' asterisms to time and judge construction. Circumference computations in the same excursus take pi = 3.
Classical
Prāṇa relevance
Prāṇa relation not yet traced — a complete, acceptable terminal state.
Sources
- txt-utpala-vivrtion 53.71-area door discussion (via Bhat, pp. 479–481)Classical✓ verifiedprocedure, deity names known so far, pi = 3
- txt-utpala-vivrtion 53.118 (via Bhat, p. 495)Classical✓ verifiedPer-room assignment of the eight house-deity types (quoted verse): Dhvaja in the śrī-gṛha, Dhūpa(/Dhūma?) in the kitchen, Siṁha in the sleeping-room, Śvan in the armoury, Vṛṣa in the dining hall, Kapi(?) in the granary, Bhadra(?) in the goods-store, Rikta in the worship-room; some schools adopt distinct Vastu-Purushas per room
Other attributes
- Recovery Note
- Only Rikta (0) and Dhvaja (1) are legible in our copy; the remaining six names and the asterism table are garbled — recover from print (Q10). Likely ancestor of the later ayadi-shadvarga family — comparison flagged for Phase 2 [SPECULATIVE].
- Source Layer Note
- Commentary-only; Utpala reports it from 'other writers' explicitly contrasted with Varahamihira's general treatment.