I suddenly realized why I can identify with Frodo when I sent out my dissertation. In some ways writing a dissertation is just like carrying The Ring. It consumes you from within, you can't wait to get rid of it all the time, yet you ended up with this strange and mixed feeling when you are finally done.
I also came across an interesting video on youtube (where else?). It'll be great if there's a short cut like this for every difficult task.