“Lord Sri Krishna is the fountainhead of all incarnations, and He is therefore the cause of all causes.”
-Excerpt from Srila Prabhupada’s purport, Srimad Bhagavatam 1.1.17
aham sarvasya prabhavo mattah sarvam pravartate
iti matva bhajante mam budha bhava-samanvitah
“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 10.8).