I've been thinking about Mace Windu and Vaapad. It seems that Mace is rather close to the dark side, and it's a critical component in his Force strength. I remember the AotC novelization also discussed Yoda's delving into the dark side to attempt to learn more about current events. Do you think, perhaps, it's no coincidence that the greatest Jedi masters all sampled the dark side before doing their greatest deeds? Also consider Luke and Vader - both of them had to experience the dark side for themselves before they were able to toss Palpatine. Perhaps Anakin had to fall to the dark side before he was ready to fulfill his destiny. The way I see it, the Jedi have an awfully dichotomized and limited view of the Force, and I find it hard to believe that the Force really wanted its students to slice it up that way. Why does the dark side exist if it's not meant to be used and encouraged at times? Just a few rambling thoughts.