Shloka 81
Varṇa-dharma and Rājadharma: Yudhiṣṭhira’s Inquiry and Bhīṣma’s Normative Outline (वर्णधर्म-राजधर्म-प्रश्नोत्तरम्)
प्रजानामायुषो हासं विज्ञाय भगवान् शिव: । संचिक्षेप ततः शास्त्र महास्त्र ब्रह्मणा कृतम्
prajānām āyuṣo hāsaṃ vijñāya bhagavān śivaḥ | saṃcikṣepa tataḥ śāstraṃ mahāstraṃ brahmaṇā kṛtam ||
毗湿摩说道：“当吉祥的湿婆神察觉众生寿命日渐衰减，便将那部由梵天所作、如大天兵般的论典加以删略，使之在人的能力日益减退的时代，仍可施用而不失其效。”
भीष्म उवाच
Educational Q&A
As human capacity declines with time, even sacred knowledge and powerful disciplines must be responsibly adapted in form—condensed and made practicable—without losing their essential authority. The verse implies an ethic of proportion: teachings (especially those involving power, like weapons) should match the moral and intellectual strength of their users.
Bhīṣma explains that Śiva, noticing the shortening of beings’ lifespans, abridged a major śāstra—described as a great astra-system—originally composed by Brahmā. This frames a tradition-history in which divine figures regulate and transmit potent knowledge in accordance with changing ages.