Shloka 20
नारद–शुक संवादः (Nārada–Śuka Dialogue): Tyāga, Saṃyama, and Vyakta–Avyakta Viveka
पाषाण इव मेघोत्थैर्यथा बिन्दुभिराहत: । नालं चालयितुं शक््यस्तथा युक्तस्य लक्षणम्
pāṣāṇa iva meghotthair yathā bindubhir āhataḥ | nālaṃ cālayituṃ śakyaḥ tathā yuktasya lakṣaṇam ||
如磐石虽为云雨之滴所击，终不可摇动；同样，这便是与瑜伽相应之人的标志：纵有种种散乱与扰动纷至沓来，也不能使持戒修行者失其安定。此教诲以心之坚住为德力——在挑衅、乐受、苦受与世间变迁之中，仍能不动如山。
याज़्ञवल्क्य उवाच
Educational Q&A
The defining sign of a yoga-disciplined person is inner steadiness: external impacts—temptations, provocations, grief, praise, blame, or other distractions—do not shake the mind from its settled clarity.
Yājñavalkya is describing the characteristics (lakṣaṇa) of a yogayukta person, using a simile: just as raindrops cannot move a rock, so disturbances cannot unsettle the true practitioner.