Vastuyajna, Vāstuyajña: 2 definitions
Introduction:
Vastuyajna means something in Hinduism, Sanskrit. If you want to know the exact meaning, history, etymology or English translation of this term then check out the descriptions on this page. Add your comment or reference to a book if you want to contribute to this summary article.
In Hinduism
Purana and Itihasa (epic history)
Vāstuyajña (वास्तुयज्ञ).—Bali offered to Vāstu immediately before meals; observance leads to one's peace, while its non-observance deprives him of his food.1 Five-fold.2

The Purana (पुराण, purāṇas) refers to Sanskrit literature preserving ancient India’s vast cultural history, including historical legends, religious ceremonies, various arts and sciences. The eighteen mahapuranas total over 400,000 shlokas (metrical couplets) and date to at least several centuries BCE.
Vastushastra (architecture)
Vāstuyajña (वास्तुयज्ञ) is the name of a ceremony preceding temple-construction, as discussed in chapter 12 of the Ādikāṇḍa of the Hayaśīrṣasaṃhitā: a large Pāñcarātra Āgama consisting of roughly 6500 verses dealing primarily with architecture, temple-building and consecration rituals and iconography.—Description of the chapter [pātāla-yāgapaṭala]: [...] The pit is then filled with bricks, and a pīṭha-pedestal is constructed atop this filled-in pit. A vāstuyajña is (again) performed all these ceremonies so far constituting one-fourth of the pratiṣṭhā-consecration of the temple (up to 56). This section is summarized by the observation that whosoever does this much gets the same rewards as he who finished a temple altogether (58a). [...]

Vastushastra (वास्तुशास्त्र, vāstuśāstra) refers to the ancient Indian science (shastra) of architecture (vastu), dealing with topics such architecture, sculpture, town-building, fort building and various other constructions. Vastu also deals with the philosophy of the architectural relation with the cosmic universe.
See also (Relevant definitions)
Full-text: Patalayagapatala.
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