Remember the story of the Spanish prisoner. For many years he was confined in a dungeon... One day it occurred to him to push the door of his cell. It was open; and it had never been locked.
When individuals get crowbars and start prying open doors to loot, they're not protesting. They're not making a statement. They're stealing. When they burn down a building, they're committing arson.
His incredible untidiness, his addiction to music at strange hours, his occasional revolver practice within doors, his weird and often malodorous scientific experiments, and the atmosphere of violence and danger which hung around him made him the very worst tenant in London.
Sometimes life is very mean: a person can spend days, weeks, months and years without feeling new. Then, when a door opens - a positive avalanche pours in. One moment, you have nothing, the next, you have more than you can cope with.
Clay is molded to form a cup, But it is on its non-being that the utility of the cup depends. Doors and windows are cut out to make a room, But it is on its non-being that the utility of the room depends. Therefore turn being into advantage, and turn non-being into utility.
Oh, I'm burning! I wish I were out of doors! I wish I were a girl again, half savage and hardy, and free... and laughing at injuries, not maddening under them! Why am I so changed?
To exercise at or near capacity is the best way I know of reaching a true introspective state. If you do it right, it can open all kinds of inner doors.