Well, let's take a gander at Revelation 20...
John sees an angel coming down from heaven with a key and a chain and lays hold of a dragon and binds him for 1,000 years. Now, the literalists have themselves quite a conundrum. Satan is not a dragon, and he was also referred to as a red dragon in Revelation 12. So, if the Satan is not a literal dragon, then we have an allegorical picture here. The key the angel has is not a literal key, but meaning he has authority. Just like Jesus said in Revelation 1 He has the keys to death and hell. He has authority over those things.
So, we have a key that is not a key, but is symbolic of authority, which means this is to be taken figuratively. Satan is bound, but he's not a literal dragon, so then this is also to be taken figuratively as well. But when we get to the 1,000 years, well, that means 1,000 literal years. Huh? That makes as much sense as a football bat.