Imagine for a moment that you're standing at the entryway to a large maze - the largest and most complicated one you've ever seen - with hedges so lush that you can't see through them and so high that you can't see over them. At the entryway is a guard who hands you a piece of paper with some instructions: There are clues within the maze to lead you straight through to the exit. Follow them and you won't get lost. There are "goodies" placed at random throughout the maze - these may be big or small. You're free to pick them up as your see them. If at any point, you're lost and you need help, raise your hand and I will come get you. Until then, you're welcome to explore the maze as much as you want. You pocket the instructions and then enter the maze. A few steps ahead, and it feels as though the maze has closed in around you, but you don't mind, because further ahead, you see a little arrow, half-hidden in the wall of leaves to your le