Adhyaya 89: शौचाचारलक्षणम् — सदाचार, भैक्ष्यचर्या, प्रायश्चित्त, द्रव्यशुद्धि, आशौच-निर्णय
भैक्ष्यं यवागूस्तक्रं वा पयो यावकमेव च फलमूलादि पक्वं वा कणपिण्याकसक्तवः
bhaikṣyaṃ yavāgūstakraṃ vā payo yāvakameva ca phalamūlādi pakvaṃ vā kaṇapiṇyākasaktavaḥ
シヴァの戒を守る者に許される食は、托鉢の食、ヤヴァーグー(米粥)、タクラ(バターミルク)、乳、そしてヤーヴァカ(大麦の調製)である。また、煮た果実と根菜、さらに kaṇa、piṇyāka(油粕)、saktu(炒り大麦粉)などの穀もよい。
Suta Goswami (narrating Śaiva-vrata rules to the sages of Naimiṣāraṇya)
It defines purified, restraint-based food options for a Śaiva vow, supporting bodily and mental śuddhi so the worshipper approaches the Liṅga with disciplined senses and a sattvic mind.
By prescribing simplicity and non-indulgence, it implies Śiva as Pati is realized through inner purification—reducing pasha (bondage) born of craving in the pashu (individual soul).
Āhāra-niyama (dietary restraint) as part of Śaiva-vrata/Pāśupata-style discipline—using simple foods (alms, milk products, barley, fruits, roots) to steady the mind for mantra and Liṅga-pūjā.