Shloka 50
Saṃhāra-krama (The Sequence of Cosmic Dissolution) — Yājñavalkya’s Discourse
पृथ्वीनाथ! नृपश्रेष्ठ) काम
bhīṣma uvāca | pṛthvīnātha nṛpaśreṣṭha kāmaṁ krodhaṁ śītoṣṇe varṣāṁ bhayaṁ śokaṁ śvāsaṁ manuṣyāṇāṁ priyān viṣayān durjayam asantoṣaṁ ghorāṁ tṛṣṇāṁ sparśaṁ nidrāṁ tathā durjayam ālasyam jitvā vītarāgo mahān uttama-buddhi-yukto mahātmā yogī svādhyāyaṁ ca dhyānaṁ ca sampādya buddhyā sūkṣmam ātmānaṁ sākṣātkurvanti || durgas tv eṣa mataḥ panthā brāhmaṇānāṁ vipaścitām | yaḥ kaścid vrajati hy asmin kṣemeṇa bharatarṣabha ||
毗湿摩说道：大地之主、诸王之最——当人征服欲与怒，寒与热，雨患，恐惧与忧悲，躁动之息；以及世人所爱之诸境；难伏之不满足；猛烈之渴爱；触觉之诱；睡眠；与顽固之懒惰——便得离著。如此大心的瑜伽行者，具崇高而精微之慧，成就自修诵习（svādhyāya）与禅定；复以辨慧之力，亲证微细真我。然而，婆罗多族之雄啊，智者婆罗门判定此瑜伽之道艰难如堡垒；唯有极少数人能安然、圆满地渡过。
भीष्म उवाच
Educational Q&A
Liberation-oriented yoga requires victory over inner enemies (desire, anger, discontent, craving) and bodily/mental pulls (sleep, laziness, attraction to sense-objects), along with endurance of opposites (cold/heat, rain, fear, grief). Through svādhyāya and dhyāna, guided by buddhi (discernment), the yogin gains direct realization of the subtle Self; however, the tradition acknowledges this path is exceptionally difficult and only rarely completed safely.
In the Shanti Parva’s instruction section, Bhishma continues advising Yudhishthira on the disciplines that lead to peace and the highest good. Here he describes the rigorous yogic path—its required conquests and practices—and adds a sober assessment: even learned Brahmanas call it hard to traverse, and only a few succeed.