Matsya Purana — Purūravas Witnesses the Sports of Apsarases and Gandharvas; Attains the Grace...
कृत्वा पुष्पोच्चयं भूरि ग्रन्थयित्वा तथा स्रजः अग्रं निवेद्य देवाय गन्धर्वेभ्यस्तदा ददौ //
kṛtvā puṣpoccayaṃ bhūri granthayitvā tathā srajaḥ agraṃ nivedya devāya gandharvebhyastadā dadau //
Having gathered a great heap of flowers and strung them into garlands, he first offered the finest portion to the deity; thereafter he gave the remainder to the Gandharvas.
This verse is not about Pralaya; it describes a worship protocol—collecting flowers, making garlands, and offering the best first to the deity.
It reflects the dharmic etiquette of worship: preparing offerings carefully and presenting the foremost portion to the deity first—an ideal practice for householders (and rulers) maintaining daily devotion and ritual order.
Ritually, it emphasizes proper upacāra (service) sequence: prepare floral offerings, offer the best portion to the deity first, then distribute the remainder—showing disciplined temple/household worship procedure.