व्यपोहनस्तवनिरूपण-प्रसङ्गे नक्तभोजन-शिवव्रतविधिः (वार्षिक-प्रतिमास-क्रमः)
पृथिवीं भाजनं कृत्वा भुक्त्वा पर्वसु मानवः अहोरात्रेण चैकेन त्रिरात्रफलमश्नुते
pṛthivīṃ bhājanaṃ kṛtvā bhuktvā parvasu mānavaḥ ahorātreṇa caikena trirātraphalamaśnute
पर्व-तिथियों में जो मनुष्य पृथ्वी को ही पात्र मानकर संयम से भोजन करता है, वह एक अहोरात्र के व्रत से त्रिरात्र-व्रत के समान फल प्राप्त करता है।
Suta Goswami (narrating to the sages of Naimisharanya)
It teaches a purity-discipline (niyama) for parva days: humble, restrained eating as an austerity that amplifies merit—supporting eligibility (adhikāra) for Śiva-pūjā and Linga-upāsanā.
By linking intensified merit to self-restraint, it implies Śiva as Pati—the liberating Lord—approached through inner purification that loosens pāśa binding the paśu.
A parva-day vrata: observing a single ahorātra discipline with simple, earth-based eating (symbolizing humility and non-attachment), yielding the fruit of a longer trirātra vow.