Mokṣa-dharma Yoga-Upadeśa: Equanimity, Sense-Restraint, and Vision of the Ātman (आत्मदर्शन-योगोपदेशः)
दुःखशोकमयैघोरै: सड़स्नेहसमुद्धवै: । न विचाल्यति युक्तात्मा निःस्पृह: शान्तमानस:,शान्ताचित्त एवं निःस्पृह योगी आसक्ति और स्नेहसे प्राप्त होनेवाले भयंकर दुःख-शोक तथा भयसे विचलित नहीं होता
duḥkhaśokamayair ghoraiḥ saḍ-sneha-samudbhavaiḥ | na vicālyati yuktātmā niḥspṛhaḥ śāntamānasaḥ ||
The disciplined yogin—tranquil in mind and free from craving—is not shaken by dreadful waves of sorrow and grief born of attachment and affection.
ब्राह्मण उवाच
Sorrow and grief become overwhelming chiefly when fueled by attachment (sneha). A yogin who is niḥspṛha (non-grasping) and śāntamānasa (calm-minded) remains steady and is not mentally shaken by painful events.
A brāhmaṇa speaker is instructing about the marks of inner discipline: the truly integrated person (yuktātmā) maintains composure even when confronted with terrifying experiences of loss, fear, and lamentation that arise from emotional clinging.