The practices that prepare the mind for successful tantric meditation by removing hindrances and accumulating merit. These practices are found in all schools of Tibetan Buddhism and are usually done 100,000 times each; the four main practices:
are recitation of the refuge formula,
Vajrasattva mantra recitation.
The Gelug tradition adds five more:
water bowl offerings,
Damtsig Dorje purifying meditation,
making tsa-tsas and
the Dorje Khadro burning offering practice (jin-sek).
see also : [[Ngöndro