The earth is physical and heaven is spiritual. If you have only heaven, then you have only the spiritual component. If you have only the earth, then you have only the physical component. If the Lord God Almighty provides the spiritual component, and there is no one in the earth who is willing to provide the physical component, nothing happens. Heaven and earth must work together in order to complete the picture.
The kingdom of heaven is now in the earth, in its spiritual form, and it must become physical, in order for it to survive in the earth. It must earn bread and butter income, live in physical homes, and eat physical food. It also must relate to the earth's physical existence. It must know that when it provides for the earth spiritually, the job is not done, until someone in the earth adds the physical component.
If the earth has an existence that is separate from its spiritual identity. it must surrender it, in order to regain its true spiritual identity. If heaven has an existence that is different from its physical identity, it must surrender it, in order to regain its true physical identity.
The Lord God intends to bridge the gap. He intends that heaven and earth will become one. He intends to manifest a physical reality. He intends to become one with the earth. He will become one with the earth.
The Lord God Almighty El Shaddai