All Kingdom of God citizens have dual citizenship:  Heaven and earth.  Once you accept the Lord Jesus as your Savior, your name is written in the Lamb's Book Of Life.  You do not have to live in Heaven to enjoy the benefits of Heaven.  You can have Kingdom living on earth here and now.  Just like a citizen of the United States can become a citizen of a foreign country without giving up his/her U.S. citizenship, it works the same with the Kingdom of God.  As long as you're in right standing with God, you have access to all the benefits and  privileges of Heaven while on earth.  Your dual citizenship allow you that opportunity.