Śrīmad-Bhāgavatam · Text 2.5.39
Who is speaking and story frame
ग्रीवायां जनलोकोऽस्य तपोलोक: स्तनद्वयात् ।
मूर्धभि: सत्यलोकस्तु ब्रह्मलोक: सनातन: ॥ ३९ ॥
grīvāyāṁ janaloko ’sya
tapolokaḥ stana-dvayāt
mūrdhabhiḥ satyalokas tu
brahmalokaḥ sanātanaḥ
From the forefront of the chest up to the neck of the universal form of the Lord are situated the planetary systems named Janaloka and Tapoloka, whereas Satyaloka, the topmost planetary system, is situated on the head of the form. The spiritual planets, however, are eternal.
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