Śrīmad-Bhāgavatam · Text 5.20.37
Who is speaking and story frame
स लोकत्रयान्ते परित ईश्वरेण विहितो यस्मात्सूर्यादीनां ध्रुवापवर्गाणां ज्योतिर्गणानां गभस्तयोऽर्वाचीनांस्त्रींल्लोकानावितन्वाना न कदाचित्पराचीना भवितुमुत्सहन्ते तावदुन्नहनायाम: ॥ ३७ ॥
sa loka-trayānte parita īśvareṇa vihito yasmāt sūryādīnāṁ dhruvāpavargāṇāṁ jyotir-gaṇānāṁ gabhastayo ’rvācīnāṁs trīḻ lokān āvitanvānā na kadācit parācīnā bhavitum utsahante tāvad unnahanāyāmaḥ.
By the supreme will of Kṛṣṇa, the mountain known as Lokāloka has been installed as the outer border of the three worlds — Bhūrloka, Bhuvarloka and Svarloka — to control the rays of the sun throughout the universe. All the luminaries, from the sun up to Dhruvaloka, distribute their rays throughout the three worlds, but only within the boundary formed by this mountain. Because it is extremely high, extending even higher than Dhruvaloka, it blocks the rays of the luminaries, which therefore can never extend beyond it.
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