Yoga Sūtra Chapter Two verse 47
Both relaxation of continued effort and unity in infinity.prayatna - continued effortśaithilya - relaxationananta - endless, boundless, eternal, infinite; the first serpentsamāpatti - coming together, unity
Commentaries and ReflectionsT Krishnamacharya:
The practice of Āsana without breathing and without remembering Ananta has no value.TKV Desikachar:
The test for intelligent effort is the response of the breath.