Hebrews 2:8

putting everything in subjection under his feet.”
Now in putting everything in subjection to him, he left nothing outside his control. At present, we do not yet see everything in subjection to him.
(Hebrews 2:8 ESV)

Everything has been put under man's leadership.Yet, his dominion over the lower world was temporarily removed when Adam/Eve sinned. Jesus has completely fulfilled this role.