Śrīmad-Bhāgavatam · Text 2.8.16
Who is speaking and story frame
प्रमाणमण्डकोशस्य बाह्याभ्यन्तरभेदत: ।
महतां चानुचरितं वर्णाश्रमविनिश्चय: ॥ १६ ॥
pramāṇam aṇḍa-kośasya
bāhyābhyantara-bhedataḥ
mahatāṁ cānucaritaṁ
varṇāśrama-viniścayaḥ
Also, please describe the inner and outer space of the universe by specific divisions, as well as the character and activities of the great souls, and also the characteristics of the different classifications of the castes and orders of social life.
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