In a moment – in a flash – in a single transformation, heaven will come to earth – now everyone wishes to know what heaven is? but the best summary comes from a son of a great rabbi – they made a pact, whoever gets to heaven, will come in a dream, then explain… – so unfortuantly the son passed, and he said to his father (this is in the Talmud) "Those below, "below," above are above – and those below who were "above," are above, below."