Matsya Purana — Śrāddha Procedure: Types
दक्षिणाभिमुखः कुर्यात् करे दर्वीं निधाय वै निधाय पिण्डम् एकैकं सर्वदर्भेष्वनुक्रमात् //
dakṣiṇābhimukhaḥ kuryāt kare darvīṃ nidhāya vai nidhāya piṇḍam ekaikaṃ sarvadarbheṣvanukramāt //
Facing south, he should perform the rite, holding the ladle (darvī) in his hand, and then place each piṇḍa (rice-ball offering) one by one, in due sequence, upon all the darbha-grass arrangements.
This verse is not about pralaya; it is a procedural instruction for Śrāddha/Pitṛ rites, specifying direction (south) and the ordered placement of piṇḍas on darbha.
It frames Pitṛ obligations as a disciplined dharma-duty: a householder (and likewise a king as exemplar) should conduct ancestral offerings with correct orientation, tools, and sequence.
Ritually, it mandates south-facing posture (associated with Pitṛs), use of the darvī as the handling implement, and sequential placement of piṇḍas on darbha—highlighting precision in śrauta/smārta-style procedure rather than Vāstu architecture.