Śrīmad-Bhāgavatam 2.5.42
SB 2.5.42
Open the full passageSanskrit
bhūrlokaḥ kalpitaḥ padbhyāṁ bhuvarloko 'sya nābhitaḥ svarlokaḥ kalpito mūrdhnā iti vā loka-kalpanā
Translation
Others may divide the whole planetary system into three divisions, namely the lower planetary systems on the legs [up to the earth], the middle planetary systems on the navel, and the upper planetary systems [Svarloka] from the chest to the head of the Supreme Personality.