This section contains the Yoga Tantras that Situ’s catalog classifies as focusing on “methods” (ཐབས་, thabs, upāya), rather than on “wisdom” (ཤེས་རབ་, shes rab, prajñā). These are organized according to a threefold scheme also used by Butön Rinchendrup (བུ་སྟོན་རིན་ཆེན་གྲུབ་, bu ston rin chen grub, 1290-1364) in his discussions of the Yoga Tantras:
Root Tantra (རྩ་རྒྱུད་, rtsa rgyud),
Explanatory Tantras (བཤད་རྒྱུད་, bshad rgyud), and
Concordant Tantras (ཆ་མཐུན་པའི་རྒྱུད་, cha mthun pa’i rgyud).