Unnatural might be the wrong word. Tainted is probably more right, as it seems into the essence of things that use it and changes them. It does have a mind of it's own. I know from experience.
[As close an admission as he will give that he's dabbled himself. Luke Skywalker is no stranger to the Dark Side and it's offers of power.]
The fish analogy would work better if you thought of it more as a fish in oil. It can survive there, but eventually the oil will overcome it. It's the same for the Dark Side. It will eventually consume and kill anyone closely associated with it.
[Action with a pickled radish]
Unnatural might be the wrong word. Tainted is probably more right, as it seems into the essence of things that use it and changes them. It does have a mind of it's own. I know from experience.
[As close an admission as he will give that he's dabbled himself. Luke Skywalker is no stranger to the Dark Side and it's offers of power.]
The fish analogy would work better if you thought of it more as a fish in oil. It can survive there, but eventually the oil will overcome it. It's the same for the Dark Side. It will eventually consume and kill anyone closely associated with it.