As I read through the scriptures, I understand that The Kingdom of God is a spiritual reality.  After jesus  Ascension and the arrival of the Holy Spirit  , I find there are TWO kingdoms operating here on Earth,.  The kingdom of satan is the visible , physical kingdom of the Earth.   Those who obeyed Jesus, by repenting, accepting Jesus as saviour and Lord and baptised by immersion in water, are in the spiritual kingdom of God on this earth.   because we alreadyEphesians 2:5-6 (KJV) 5 Even when we were dead in sins, hath quickened us together with Christ, (by grace ye are saved;) 6 And hath raised us up together, and made us sit together in heavenly places in Christ Jesus:
 When we die we move to the real physical Kingdom of God.

 In ROM. it says,  Kingdom of God is not eating and drinking, but having the joy, peace and love of God. This is how I understand