aham sarvasya prabhavo
mattah sarvam pravartate
iti matva bhajante mam
(The Opulence of the Absolute, Text 08 Chapter 10)
Meaning: I am the source of all spiritual and material worlds.Everything emanates from Me. The wise who perfectly know this engage in My devotional service and worship Me with all their hearts.
Bhagavad Gita: Everything emanates from Me (The Opulence of the Absolute, Text 08 Chapter 10)