because you can never know anything :)
& then life happens, but we always find a way to deal with it, like it or not. Its not what we plan it's the unplanned that we learn from, and even if you're not ready, thats life and it's going on with or without you. So get your hands on the things that really matter most to you and do something with what you've got; make the diference you want to see... besides anything that lives in a dream can be done, so do it :)