Satan tries to captivate us in our trials, but when God captivates our hearts, it will be sweet revenge on the enemy.
Before Adam's Fall, God gave him the earth. The serpent could not live in the spirit of Adam because Adam occupied the mind of God. He was God's thinking and presence in the earth.
After his Fall, satan the serpent gave the world to a fallen Adam. Satan has held the world in captivity ever since to use our fallen state to prevent us from inheriting the earth.
Christ came to set the captives free. As we submit His Lordship, He will bring us into conformity with His Word and return our captivity.