Wow, this is amazing; I have been saying this stuff to my family and friends for ages, but no one seemed to see where I was coming from. It's kind of ironic that someone wrote a book about this, because I was planning on writting something like this in the future about my "Harry Potter Philosophy." I will definitely check this book out. I love this guy.
PS-And I agree with the author about the Mirror of Erised scene; It is my favorite piece of insight from the series (as you can see from the quote in my signature). Here's the whole quote, it wouldn't all fit in my signature:
"It shows us nothing more or less than the deepest, most desperate desire of our hearts. . . However, this mirror will give us neither knowledge or truth. Men have wasted away before it, entranced by what they have seen, or been driven mad, not knowing if what it shows is real or even possible. . . It does not do to dwell on dreams and forget to live, remember that." Dumbledore