
Originally Posted by
Arjuna
This is not accurate. Historically Gita was written approximately at the same time as Yoga-sutras or even earlier (Gita is dated by 5th century B.C.E., Yoga-sutras as i remember are post-buddhist). But Patanjali's system is very different from Gita's teaching.
Yoga of early Upanishads is similar to Gita's one.
Shaiva-siddhanta system of Yoga is again different from these both, as reflected in Tirumantiram (6th century C.E.).
Tantric Shaiva Yoga can be dated by approximately 6—9th centuries C.E., and is reflected in Bhairava-agamas (for example, in Netra-tantra and Vijnana-bhairava). Though it has also eight angas, it is very defferent from Patanjali's system, but is well compatible with Gita's teaching.
Then, both these ancient systems are different from hatha-yoga propogated by followers of Gorakhnath (12th century and later). Here we have Hathayoga-pradipika, Gheranda-samhita etc. But this hatha-yoga is still a religious system, based upon Natha-shaivism.
I assume Ghata-yoga of Jagannatha cult is of the same period.
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