This cosmic manifestation, the material world, is also Your body. This total lump of matter is agitated by Your potent energy known as kāla-śakti, and thus the three modes of material nature are manifested. You awaken from the bed of Śeṣa, Ananta, and from Your navel a small transcendental seed is generated. It is from this seed that the lotus flower of the gigantic universe is manifested, exactly as a banyan tree grows from a small seed.
Srimad Bhagavata Purana
श्रीमद्भागवतमहापुराणम्
मूल श्लोकः
तस्यैव ते वपुरिदं निजकालशक्त्या सञ्चोदितप्रकृतिधर्मण आत्मगूढम् । अम्भस्यनन्तशयनाद्विरमत्समाधे- र्नाभेरभूत्स्वकणिकावटवन्महाब्जम्
tasyaiva te vapuridaṃ nijakālaśaktyā sañcoditaprakṛtidharmaṇa ātmagūḍham | ambhasyanantaśayanādviramatsamādhe- rnābherabhūtsvakaṇikāvaṭavanmahābjam
SB 7.9.33