The eightfold observance (Tib. ཡན་ལག་བརྒྱད་དང་ལྡན་པའི་བསྙེན་གནས།, [[Wyl. yan lag brgyad dang ldan pa’i bsnyen gnas) is to refrain from:
- sexual activity,
- false speech,
- singing, dancing, music, and beautifying oneself with adornments or cosmetics,
- using a high or large bed, and
- eating at improper times.
Typically, this observance is maintained by lay people for twenty-four hours on new moon and full moon days, as well as other special days in the lunar calendar. 
- 84000 Translating the Words of the Buddha.