I love this quote. It is kind of the explanation Brad Pitt gives in Fight Club. How do you know what you can do? Well if you have never had to live by the skin of your teeth, then what do you know what you are capable of?
Go for long walks. Indulge in great conversations. Question your assumptions. Love yourself. Pay attention to the moment. Be a little crazy. Count your blessings. Let go for a little while and just be.