sa chog. Usually performed at the beginning of major tantric rites (like empowerments) to appease the local spirits of the site. A site ritual must be performed before a maṇḍala can be created. Ex: ‘Jigs byed dpa’ bog cig pa’i sngon ‘gro’i sa chog (W12042), Sa chog mdor bsdus bya tshul (W22585).