A kind of Sāmācārī (rules of conduct qua etiquette, formality and convention);
to pay respect to the Ācārya (preceptor) and the like, and to bring food, medicine etc., for them.
abbhuṭṭhāṇaṃ gurupūyā...
abhimukhyenotthānam- udyamanamabhyutthānaṃ tacca 'gurupūya' tti sūtratvād gurnpūjāyāṃ, sā ca gauravārhāṇām ācāryaglānabālādīnāṃ yathocitāhārabheṣajādisampādanam.
(U 26.7 ŚāVṛ Pa 535)