Shloka 1
Adhyāya 302: Guṇa-vicāra, Gati-bheda, and the Imperishable State
Yājñavalkya–Janaka
युधिष्ठिरने पूछा--पितामह! वह अक्षर तत्त्व कया है, जिसे प्राप्त कर लेनेपर जीव फिर इस संसारमें नहीं लौटता तथा वह क्षर पदार्थ क्या है, जिसको जानने या पा लेनेपर भी पुनः इस संसारमें लौटना पड़ता है?
Yudhiṣṭhira uvāca—Pitāmaha! tat akṣara-tattvaṃ kim, yat prāpya jīvaḥ punaḥ asmin saṃsāre na nivartate? ca tat kṣaraṃ padārthaṃ kim, yat jñātvā vā prāpya vā punaḥ asmin saṃsāre nivartate?
由提施提罗问道：“祖父啊，何谓不坏之实在（akṣara），众生一旦证得便不再回返此世？又何谓可坏之原则（kṣara），即便知之或得之，仍须再返世间轮回？”
युधिछिर उवाच
Educational Q&A
The verse frames a fundamental inquiry into liberation: the distinction between the imperishable (akṣara)—that realization/attainment which ends return to saṃsāra—and the perishable (kṣara)—that which remains within change and therefore does not by itself free one from rebirth. It sets up Bhishma’s forthcoming instruction on what truly leads to moksha versus what yields only temporary or worldly attainments.
In the Shanti Parva’s post-war instruction, Yudhishthira, seeking clarity on the highest good, questions Bhishma (lying on the bed of arrows) about the nature of the imperishable principle that grants non-return and the perishable principle that still entails return to worldly existence.