Saitō (Japanese surname)

to observe a religious fast; to abstain from food or certain activities before a ritual

dining hall in a Buddhist temple

Zhaijiao sect of Buddhism

Ramadan (Islam)

to beg for food (of monks)

to abstain from eating meat; to be a vegetarian

to fast; to abstain from food

to fast

fast (in several religions); Ramadan (Islam); see also 齋月|斋月[Zhai1 yue4]