We thought of life by analogy with a journey, a pilgrimage, which had a serious purpose at the end, and the thing was to get to that end, success or whatever it is, maybe heaven after you’re dead. But we missed the point the whole way along. It was a musical thing and you were supposed to sing or to dance while the music was being played.
It is fear that is the cause of our woes, and it is fearlessness that brings heaven in a moment "The earth is enjoyed by heroes" - this is the unfailing truth.
The Kingdom of Heaven is within us. God is within us. He is the Soul of our souls. See Him in your own soul. That is practical religion. That is freedom.
Heaven is eternal and Earth everlasting. They can be eternal and everlasting because they do not exist for themselves, And for this reason can exist forever.