What a Day that will Be, 1

To understand Biblical prophecy we must read it, re-read it, and read it again. But we also must be thinking clearly and with a motivation and desire to understand it. Understanding prophecy sometimes is like a puzzle and 1 or 2 pieces just don't fit our neat and tidy picture.
Some questions to be answered:

1. When will the new heaven and new earth come?
2. What will be the results?
3. What is the purpose of prophecy?