Shloka 11
महाभूत–इन्द्रिय–मनस्–बुद्धि–अन्तरात्मा विवेकः | Discrimination of Elements, Senses, Mind, Intellect, and Inner Self
भूमौ विपरिवर्तन्ते तिष्ठन्ति प्रपदैरपि । स्थानासनैवरवर्तयन्ति सवनेष्वभिषिज्चते
bhūmau viparivartante tiṣṭhanti prapadair api | sthānāsanair eva vartayanti savaneṣv abhiṣiñcate |
毗耶娑描绘一位大心之林居者（vānaprasthin）的严峻行持：他在裸地上翻滚，以前足之力亦能久立，凭守固定姿势而住——或立或坐——并于每日三时的仪轨中如法行沐浴净身。此段彰显苦行（tapas）之自制，能净化行止、安定其心，契合于法（dharma）。
व्यास उवाच
Educational Q&A
That disciplined austerity—enduring hardship, regulating posture and conduct, and maintaining daily ritual observances—supports purification and steadiness, aligning one’s life with dharma in the forest-dweller stage.
Vyāsa is describing the practices of a mahātmā vānaprasthin: rolling on the ground, standing on the forefeet, remaining in fixed standing/sitting postures, and bathing at the three daily ritual times.