“Yoga is Anu–Śāsana Śastra.
It is experiential, not speculative,
it is ancient, with its origin in the Veda.
Sages followed the Vedic teachings and
transmitted their experience to their students.
The students, in turn, learned and experienced the teachings
in their own lives, and thus became competent to teach.
In this way the lineage of Yoga teachers is established.”
– T Krishnamacharya on Yoga Sūtra Chapter One verse 1

“Anu–Śāsanam – Śāsanam text of authority.
Thus it was in the past and is continuous and will be there in the future.
It is not new and will always be valid.”
– TKV Desikachar commentary on Yoga Sūtra Chapter One verse 1

“Now,
you follow what follows,
the teachings of Yoga.”
– Paul Harvey on Yoga Sūtra Chapter One verse 1