When you observe something long enough, you can see yourself in it. Sometimes this can be helpful, other times this will be harmful.
Little Amy got lost in the scary forest and has to get home before night falls or she will die of a heart attack. The challenge is to stay at a healthy heart rate, fast enough to overcome obstacles such as scary shadows, poisoness mushrooms and the treacherous road. Keeping at a low heart rate might get you through the forest but not before the darkness spreads. If you're lucky, you can find berries along the road to help decrease your heart rate.