Shloka 88
Daṇḍanīti and the King as the Cause of Yuga-Order (दण्डनीतिः राजधर्मश्च युगकारणत्वम्)
अशुभस्य चतुर्थाशस्त्रीनंशाननुवर्तते | कृष्टपच्यैव पृथिवी भवन्त्योषधयस्तथा
aśubhasya caturthāṃśas trīn aṃśān anuvartate | kṛṣṭapacyāiva pṛthivī bhavanty oṣadhayas tathā ||
毗湿摩说：当不祥的第四分跟随在三分（功德）之后，世间便进入一种近似特雷塔纪初起的状态。于此境中，大地唯有经耕犁播种方出五谷，药草亦须凭此耕作而生——这表明从不劳而丰的富饶走向衰减，在正法之治下，人更需依赖有纪律的勤作。
भीष्म उवाच
Educational Q&A
Moral and social conditions are linked to righteous governance and the balance of merit and demerit: as inauspiciousness increases (even as a subordinate ‘fourth part’), nature’s spontaneous abundance diminishes and human society must rely more on disciplined effort (cultivation), reflecting a step down from a higher yuga.
In Bhishma’s instruction on dharma and royal policy (daṇḍanīti), he describes a yuga-transition scenario: when the world’s moral balance shifts so that a portion of ‘aśubha’ trails the dominant ‘good,’ the age resembles the onset of Tretā, marked by the earth producing crops and herbs only through ploughing and sowing.