Hope, for the Christian, is not wishful thinking or mere blind optimism. It is a mode of knowing, a mode within which new things are possible, options are not shut down, new creation can happen.
N. T. WrightOf course there are people who think of 'heaven' as a kind of pie-in-the-sky dream of an afterlife to make the thought of dying less awful. No doubt that's a problem as old as the human race.
N. T. WrightWhen Jerusalem is destroyed, and Jesus' people escape from the ruin just in time, that will be YHWH becoming king, bringing about the liberation of his true covenant people, the true return from exile, the beginning of the new world order
N. T. Wright