Matsya Purana — Eclipse-Time Planetary Bath
प्राङ्मुखः पूजयित्वा तु नमस्यन्निष्टदेवताम् चन्द्रग्रहे विनिर्वृत्ते कृतगोदानमङ्गलः कृतस्नानाय तं पट्टं ब्राह्मणाय निवेदयेत् //
prāṅmukhaḥ pūjayitvā tu namasyanniṣṭadevatām candragrahe vinirvṛtte kṛtagodānamaṅgalaḥ kṛtasnānāya taṃ paṭṭaṃ brāhmaṇāya nivedayet //
Dengan menghadap ke timur, hendaklah seseorang memuja dan bersujud kepada dewa pilihannya. Apabila gerhana bulan telah berakhir, setelah melaksanakan upacara mujarab pemberian lembu dan selesai mandi, hendaklah kain (paṭṭa) itu dipersembahkan kepada seorang brāhmaṇa.
This verse does not address pralaya; it focuses on post-eclipse (grahaṇa) ritual purification, worship, and meritorious donation as part of dharma.
It frames a householder’s (and by extension a king’s) duty to observe purity and charity: worship facing east, bathe after the eclipse, and complete prescribed gifts—especially go-dāna and gifting cloth to a brāhmaṇa—reflecting social-religious responsibility and merit-making.
The significance is ritual (not architectural): correct orientation (facing east), eclipse-closure timing, bathing (snāna) for purification, and the prescribed donations (cow and cloth) culminating in a brāhmaṇa offering.