Revelation 21:1-6
Then I saw a new heaven and a new earth; for the first heaven and the first earth had passed away, and the sea was no more. And I saw the holy city, the new Jerusalem, coming down out of heaven from God, prepared as a bride adorned for her husband. And I heard a loud voice from the throne saying,
‘See, the home of God is among mortals.
He will dwell with them;
they will be his peoples,
and God himself will be with them;
he will wipe every tear from their eyes.
Death will be no more;
mourning and crying and pain will be no more,
for the first things have passed away.’
And the one who was seated on the throne said, ‘See, I am making all things new.’ Also he said, ‘Write this, for these words are trustworthy and true.’ Then he said to me, ‘It is done! I am the Alpha and the Omega, the beginning and the end. To the thirsty I will give water as a gift from the spring of the water of life.
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The Book of the Revelation of John, usually referred to simply as Revelation or the Book of Revelation, is the last book of the New Testament. It is also called the Apocalypse of John. Apocalypse, from the Greek, is a synonym for "Revelation", but also from it comes the name for the type of literature; an "apocalypse" is a work of apocalyptic literature. John's is the only book in the Canon that is wholly composed of apocalyptic literature.
Revelation is a cryptic document which has been interpreted in many ways. (http://en.wikipedia.org/wiki/Book_of_Revelation)
Apocalypticism is the religious belief that there will be an apocalypse, a term which originally referred to a revelation of God's will, but now usually refers to belief that the world will come to an end time very soon, even within one's own lifetime. This belief is usually accompanied by the idea that civilization, as we know it, will soon come to a tumultuous end with some sort of catastrophic global event such as war. (http://en.wikipedia.org/wiki/Apocalyptic)