नारद–शुक संवादः
Impermanence, Svabhāva, and Śuka’s Resolve for Yoga
गुणक्षयत्वात् प्रकृति: कर्तृत्वादक्षयं बुधा: । एषा ते<<न्वीक्षिकी विद्या चतुर्थी साम्परायिकी
guṇakṣayatvāt prakṛtiḥ kartṛtvād akṣayaṃ budhāḥ | eṣā te ’nvīkṣikī vidyā caturthī sāmparāyikī ||
“Dahil ang mga katangian nito (guṇa) ay napapawi at nalulusaw, ang Prakṛti—ang unang Kalikasan—ay itinuturing na nasisira; ngunit dahil ang Puruṣa ang nagpapakilos at siyang panloob na tagaganap, ipinahahayag ng marurunong na siya’y di-nasisira. O hari ng mga Gandharva, ito ang ikaapat na disiplina ng pagsisiyasat (ānvīkṣikī) na itinuro ko sa iyo—kaalamang tumutukoy sa pinakamataas na layon at tumutulong sa paglaya.”
याज़्ञवल्क्य उवाच
The verse distinguishes prakṛti and puruṣa: prakṛti is perishable because it is constituted by guṇas that undergo change and dissolution, while puruṣa is imperishable as the inner principle associated with agency/instigation. This discrimination is presented as ānvīkṣikī—philosophical inquiry—aimed at the highest good (mokṣa).
Yājñavalkya addresses the Gandharva king and concludes a segment of instruction by presenting a doctrinal summary: he has taught a ‘fourth’ ānvīkṣikī vidyā, characterized as sāmparāyikī—knowledge oriented toward the ultimate end and liberation.