Great philosophers imagine that the complete planetary systems in the universe are displays of the different upper and lower limbs of the universal body of the Lord.
Srimad Bhagavata Purana
श्रीमद्भागवतमहापुराणम्
मूल श्लोकः
यस्येहावयवैर्लोकान् कल्पयन्ति मनीषिणः । कट्यादिभिरधः सप्त सप्तोर्ध्वं जघनादिभिः
yasyehāvayavairlokān kalpayanti manīṣiṇaḥ | kaṭyādibhiradhaḥ sapta saptordhvaṃ jaghanādibhiḥ
SB 2.5.36