Harry Potter pt. 4

In the 5th movie we find the power of love.
People who hate do cruel and evil things.  People who hate turn dark inside.  Sometimes it doesnt even take hate.  Indifference, depression, disgust: all these things have the power to turn you dark inside.

In the 5th movie we find that some people are faithful even until death with secrets and refuse to be used by evil.  We find that authority without respect, understanding, and honesty results in those under it's control having to hide.  They pretend, obeying outwardly and fight against every rule.  They band together and devote all their time and energy to thwarting the fierce control levied over them, even to the point where they are told they deserve punishment for pretending (when they are telling the truth).
They find that obedience would render them infantile and useless and they rebel.
They form fast friendships, hiding secrets and being there for eachother.  They refuse to break up and together they face powers much bigger, older, stronger and are able to change the course of a battle.

And they are just children

Control breeds rebellion. 
Freedom and careful teaching create wise and powerful individuals who can decide for themselves how and when to act.
Harry find that he can see things others cannot because he has 'seen death.'
He is at the same time hurt and helped by his past.  And even through nightmares, pain, struggles, and victory it does not change. He cannot change his past any more than we can.

One final thing: Harry finally finds his happy memories.  Using them he refuses the Dark Lord's possession of his mind.  He speaks softly and gives him the ultimate blow: "You're the weak one. And you'll never know love,or friendship. And I feel sorry for you."
Even in our world, love has a tremendous and overwhelming power.  My father does not have love or friendship.  He has control and power and fear.  And he has children who have run away from his tryannical reign.  He does not have a wife/helpmeet.  He has a house-elf who serves and obeys and cannot question.
He does not have colleagues.  He has a posse of followers who may or may not stay faithful if he disappears.
And while I dont feel sorry for him, I wish I could.