Answer:
This is my opinion!
Woods is childhood - ocean is adulthood
As a child, everything is usually the same. Go to school, come home, do homework, play outside, eat dinner, sleep. Repeat, repeat, repeat. Nothing is changing because your parents always have your back, and you have no real responsibilities. As an adult, things are always changing. Something could go wrong at any moment. Forget to pay pills, electricity shuts off, you lose your job, etc.