New Heaven & New Earth
In the very beginning, heaven and earth were joined in some say. God walked with Adam and Eve and they were able to experience his full presence. Unfortunately, sin entered the world through Adam and Eve and heaven and earth became separated. The rest of Scripture after Genesis 3 is the story of God restore man and creation to his original design, and the great lengths he'll go to for it. One day, all things will be made new- even heaven and earth.