The kingdom of God is built on who?
Christ is the kingdom of God. You don’t enter a place, you enter Him. He is the kingdom of God.
“Just as He chose us in Him, before the foundation of the world, that we should be holy and without blame before Him in love.”
That means you were chosen “in Him, in love”. When you are “in love” you are “in Him” because “He is Love”.
This is only a small portion of the teaching, “Entering the Spiritual Dimensions“.