OK serious talk guys. Did you know lord of the rings actually takes a lot of things from religious points of view? For ecample Elf are the idea of what a perfect human would be, I.E Adam and eve. Wizard, such as Gandalf are Angels. You see the term for wizard in lord of the rings is a Maiar. Maiar's are essentially angels that fell to earth. Other Maiar's are Sauron, and that guy from the hobbit with the rabbits. The reason why they act strange, is because once they have fallen to earth, maiar's tend to forget why they came there, and what they are. Gandalf however remembers waht he was, hence why he was more powerful than the other Maiar's.