Matsya Purana — Mandāra-Saptamī Vrata
पद्मं कृष्णतिलैः कृत्वा ताम्रपात्रे ऽष्टपत्त्रकम् हैममन्दारकुसुमैर् भास्करायेति पूर्वतः //
padmaṃ kṛṣṇatilaiḥ kṛtvā tāmrapātre 'ṣṭapattrakam haimamandārakusumair bhāskarāyeti pūrvataḥ //
Fashioning an eight-petalled lotus out of black sesame in a copper vessel, one should then, facing east, offer golden mandāra blossoms with the mantra, “(Obeisance) to Bhāskara (the Sun).”
This verse is not about pralaya; it prescribes a precise ritual method for honoring Bhāskara (Surya) using specific materials and orientation.
It reflects the householder/kingly duty of maintaining dharma through prescribed daily or occasional worship—using proper substances (black sesame, copper vessel, flowers) and correct direction (facing east) for Surya-upāsanā.
Ritually, it specifies materials (tāmra-pātra, kṛṣṇa-tila, mandāra flowers), a symbolic lotus maṇḍala (eight petals), and east-facing orientation—key procedural details for Puranic worship rather than temple architecture.