1) three purities, [in Mahayoga] purity of the outer world {snod dag pa} purity of its inner contents {bcud dag pa} and purity of the components, bases and activity fields forming the mind-stream {rgyud rnams dag pa}. 2) the three purities [in Kriya Yoga], {lha dang dkyil 'khor dag pa}, {rdzas dang long spyod dag pa}, {sngags dang ting 'dzin dag pa}