Six-member yoga (Yoga)

Apparently developing under the influence of Buddhism and referred to in the Maitrayaniya Upanishad, this ancient system of yoga does not include as separate elements the first three components of classical or eightfold yoga, yama (restraint), niyama (discipline) or asana (posture); included instead is [tarka]

or [anusmriti]

(recollection), referring to the ultimate realization of yoga.