This section is devoted to the first (and lowest) of the four classes of tantra: “Action Tantra” (བྱ་རྒྱུད་, bya rgyud, kriyātantra), and begins with the major work, the Three Commitments (དམ་ཚིག་གསུམ་བཀོད་, dam tshig gsum bkod, trisamayavyūha, D.504). The tantras in this class are organized into two groups.
The first category is composed of Action Tantra works that are each related to a particular Buddha family, and contains the majority of the Action Tantras. The “General Action Tantras” section contains four works that treat Action Tantra in general, and that are not directly affiliated with a particular Buddha family.
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