The Immediate:
The passageway for The Stone (an online game -- if you're not familiar with it, go here).
Each triangular cell within the Immediate (also called the Enigma? At least that's what the Stone Keepers allude to.) represents one puzzle. When a puzzle is available to a certain player, a white dot will appear within the triangle of that player's Immediate. If a player has solved a puzzle, that triangle will contain a gray dot.
At the moment (July 10, 2002) there are 58 puzzles available within the Immediate, so at most a player will have 58 dots showing. (As you solve puzzles, others are made available to you.)