Heaven is the plane of the spiritual nature of God, earth the plane of the material nature of God, and hell that part of existence in which the nature of God (or good) is least powerful; the outer circumference of Deity.
Jesus said, "Congratulations to those who are alone and chosen, for you will find the kingdom. For you have come from it, and you will return there again."
Jesus said to them, "When you make the two into one, and when you make the inner like the outer and the outer like the inner, and the upper like the lower, and when you make male and female into a single one, so that the male will not be male nor the female be female, when you make eyes in place of an eye, a hand in place of a hand, a foot in place of a foot, an image in place of an image, then you will enter [the kingdom]."
His disciples said to him [Jesus], "When will the kingdom come?"
"It will not come by watching for it. It will not be said, 'Look, here!' or 'Look, there!' Rather, the Father's kingdom is spread out upon the earth, and people don't see it."