Nāndīmukha-śrāddha (Prosperity Rites), Preta-kriyā, Aśauca, Ekoddiṣṭa, and Sapiṇḍīkaraṇa Framework
आदाहवार्यायुधादिस्पर्शाद्यन्तास् तु याः क्रियाः ताः पूर्वा मध्यमा मासि मास्य् एकोद्दिष्टसंज्ञिताः
ādāhavāryāyudhādisparśādyantās tu yāḥ kriyāḥ tāḥ pūrvā madhyamā māsi māsy ekoddiṣṭasaṃjñitāḥ
अग्नि, जल और नियत उपकरणों के स्पर्श आदि से आरम्भ होकर अंत तक जो क्रियाएँ होती हैं, वे ‘पूर्व’ कहलाती हैं। और जो मास के पूर्वार्ध या मध्यभाग में की जाएँ, वे उसी मास में ‘एकोद्दिष्ट’ नाम से जानी जाती हैं।
Sage Parāśara (teaching Maitreya)
It designates a śrāddha aimed at one specifically intended departed soul, defined here by its complete ritual sequence and its performance timing within the month.
He frames them as a full continuum—from the opening consecratory contacts involving fire, water, and implements, through to the concluding acts—then assigns the technical name based on when in the month they are performed.
Even in ritual instruction, the Purāṇa presents dharma and ancestral offerings as part of the ordered universe sustained by Vishnu, where correct rite and right time participate in maintaining cosmic and social harmony.