Wright’s basic correction: heaven isn’t a distant place you fly off to after death. It is God’s space, which exists alongside ours — and the Bible is the story of how those two spaces are being joined together again.
In the Old Testament, Israel had places where the two overlapped: the temple, the Sabbath, the Torah. These weren’t lifts up to heaven, but points where heaven was within reach.
Jesus then put himself in the place of the temple — in him the two worlds overlapped completely. And prayer is the way to keep standing in that overlap: not an escape from earth, but a plea for heaven to grow through into here.
That’s why the Lord’s Prayer doesn’t say “take us away from here”, but “your kingdom come, your will be done, on earth as it is in heaven”.
N. T. Wright: Simply Christian, Part II · The Lord and His Prayer