You are on Chapter 1:
You've had a bad day at school/work today. You are home alone. You look down at your hands and notice all the cuts and scars from various books/tools/whatever. It's nine o'clock at night and you are debating on whether to stay awake with the lights on, or turn off the lights and go to sleep. Choose wisely.
Stay awake: go to chapter 3.
Go to sleep: go to chapter 2.