The dispensation of conscience, the time immediately after the fall of man when Adam and Eve were banished from the garden of Eden, we've also deduced was the first purification of heaven.
Angels That Sinned
The Dispensation of Conscience
The history of creation is the working out of the process of purification. Eventually there will be absolute purity in heaven, and there will be only corruption left on Earth. At this time the Earth will be disposed of.
Earth’s Form Fits its Function
The creation of gravity caused the majority of the darkness and corruption in the universe to accumulate at the center of creation. This became the body of the Earth. The majority of light and purity accumulated in heaven.
No One Has Ascended to Heaven
If no man has ascended up to heaven, except Jesus Christ who came down from heaven, then we have a few questions to ask...