Obi-Wan blocked the attacks calmly, keeping himself focussed Breathe. It wasn't as easy as he made it look much of the time. He was emotional by nature, and this calm exterior was not at all his given demeanor. But when Galen began using the Force to throw things, he growled and held up a hand to create his own shield.
"Enough!" The words were bellowed, with a power coming from his body as he said so. He was far from the strongest or most powerful Jedi to ever have lived, but he also knew when to start to show his true strength. He'd gone toe to toe with many a powerful Sith, including Vader, and he'd won.
"I know that you were tricked. I know that you are full of rage. I also know that misdirected rage is dangerous for you and the rest of this place. You can explode here, kill everybody and everything, and you will STILL feel angry. You wll just become angrier and lonelier and he will have won. If that is what you want, by all means, keep fighting me."