Here's the thing; the will of the Force doesn't have morals, does it? How could it? I think the will of the Force exists, but if it does good or bad is only our opinion. It wouldn't have an opinion, or sides. So yes, it is there, but it doesn't do things for people, and it doesn't do things with the intent of good or evil. It's just there, and it just happens. I don't think it has motivation to do good or bad.
I think an excellent view of the Force can be found in the ROTS novel. If you read the beginning of chapter 7, it shows in extreme detail how the Force works for Obi-wan. It says that Obi-wan had not had the Force opened up to him so clearly since before Naboo. Why? The dark-side clouds everything. That's interesting though, for people like myself who think dark-side and light-side only exist in a persons point of view. If the dark-side isn't a true part of the Force, than why was the Force clouding the Jedi's vision for years? Was this the will of the Force, in order to keep the Jedi ignorant to Palpatine? If it was the will of the Force, then it wasn't doing something bad, or good. It was just working towards balance (I like Caedus' example).
Anyway, if you continue in the chapter, it gives an excellent view of how the Force worked for Obi-wan when the cloud of the dark-side was gone.
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I'm going to quote some parts I found interesting. These spoiler warning are just to keep my post shorter; I think we all know what happens in ROTS.
I encourage you to read if you get the chance, I think these quotes will help in this discussion.
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"This is Obi-Wan Kenobi in the light (by light, does he mean the fact that Obi-Wan can now use the Force and see everything? Not an actual light side?):"
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"He doesn't even need to reach into the Force.
He has already let the Force reach into him."
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"The part of him that calls itself Obi-Wan Kenobi is no more than a ripple, an eddy in the pool into which he endlessly pours. There are other parts of him here, there is nothing here that is not a part of him, from the scuff mark on R2-D2's dome to the tattered hem of Palpatine's robe, from the spidering crack in one transparisteel panel of the curving wall above to the great starships that still battle beyond.
Because this is all part of the Force.
Somehow, mysteriously, the cloud that has darkened the Force for a near decade and a half has lightened around him now...It is as though the darkness has withdrawn, has coiled back upon itself, to allow him this moment of clarity, to return him to the full power of the light, if only for the moment; he does not know why, but he is incapable of even wondering. In the Force, he is beyond questions. "
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"He is all of these things, but most importantly, he is still Obi-Wan Kenobi. This is why he can simply stand. Why he can simply wait. He has no need to attack, or to defend. There will be a battle here, but he is perfectly at ease, perfectly content to let the battle start when it will start, and let it end when it will end.
Just as he will let himself live, or let himself die.
This is how a great Jedi makes war."
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"'That will not happen. I am in control here.'
The reply came through Obi-Wan's lips, but is was not truly Obi-Wan who spoke. Obi-Wan was not in control; he had no need for control. He had the Force.
It was the Force that spoke through him."
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"He remembered the Question of Master Jrul: What is the good, if not the teacher of the bad? What is the bad, if not the task of the good?"
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"In the Force, part of him was Grievous's intent to slaughter, and the surge from intent to action translated to Obi-Wan's response without thought. He had no need for a plan, no use for tactics.
He had the Force."
Now, in comparison, let's look at how Palpatine suggests the Force be used. You will not that Obi-Wan let's the Force control him. Not so for Palpatine. Perhaps this is the difference between the "light" and "dark"?
This is from chapter 15 of ROTS.
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"'And in exchange?' he[Anakin] asked, finally. 'What do I have to do?'
'You have to do what you want.'
'What I want?'
'Yes, Anakin. Yes. Exactly that. Only that. Do the one thing that the Jedi fear the most: make up your own mind. Follow your own conscience. Do what you think is right. I know that you have been longing for a life greater than that of an ordinary Jedi. Commit to that life.'"
I think what Palpatine is saying here is wrong. Personally, I think that Obi-Wan was the ultimate Jedi, for the fact that he would only open himself to the Force. He let the Force make up his mind. Is this not the smartest thing one can do? Look at Anakin. In using emotions to decide his actions, instead of the Force, he destroyed nearly the entire Jedi order, lost his wife, and lived a miserable life as Darth Vader. Now, I think it was the will of the Force for all of this to happen, in order to bring balance. But if Anakin had used the Force to guide him, perhaps none of these things would have happened. Perhaps he could have brought balance without the mess he caused.