Matsya Purana — Genealogy from Budha to Purūravas and Yayāti; Raji’s war episode; the Paurava...
ततो बृहस्पतिः शक्रम् अकरोद्बलदर्पितम् ग्रहशान्तिविधानेन पौष्टिकेन च कर्मणा //
tato bṛhaspatiḥ śakram akarodbaladarpitam grahaśāntividhānena pauṣṭikena ca karmaṇā //
Then Bṛhaspati made Śakra (Indra) strong and confident, by means of the prescribed rites for pacifying the planets and through prosperity-bestowing (pauṣṭika) ritual actions.
This verse does not address pralaya; it focuses on remedial ritual—planetary pacification (graha-śānti) and pauṣṭika rites—to restore strength and favorable conditions.
It implies a dharmic duty to maintain stability through sanctioned rites: a king (or householder) may employ graha-śānti and pauṣṭika rituals, under a competent priestly authority, to remove afflictions and secure welfare, vigor, and prosperity.
The significance is ritual rather than architectural: it explicitly mentions the formal procedure (vidhāna) of graha-śānti and the pauṣṭika category of rites, indicating structured, rule-based ceremonies intended to promote strength and auspiciousness.