Shloka 21
Yoga-kṛtya (योककृत्य) — Vyāsa on Sense-Restraint, Obstacles, and Brahman-Realization
एतमेव च नैवं च न चोभे नानुभे न च । कर्मस्था विषयं ब्रूयु: सत्त्वस्था: समदर्शिन:
etameva ca naivaṁ ca na cobhe nānubhe na ca | karmasthā viṣayaṁ brūyuḥ sattvasthāḥ samadarśinaḥ ||
毗耶娑说：执著于“业行”之说者，于此事各执一端、互相矛盾：有人说“唯此（努力）为因”；有人说“不然——努力非因，天命为因。”有人说二者并行方得成就，也有人二者皆否。于是终不能得定论。然而安住于萨埵（sattva）、平等观照的瑜伽行者，却洞见一味的真实为因果之根本。
व्यास उवाच
Educational Q&A
Debates about whether success is caused by human effort, fate, both, or neither often remain inconclusive when argued from an action-centered standpoint. The verse points toward a higher, sattva-based yogic vision that sees an underlying, single reality as the true basis behind apparent causes.
Vyāsa is explaining a philosophical dispute about causality—how results arise—and contrasts the conflicting claims of karma-focused speakers with the steadier insight of sattva-established yogins who are described as samadarśin (equal-seeing).