 You know, with Vader and Luke, you know, join me and together we can rule together. All this is together. Let me help finish your training. Let me teach you the ways that you don't understand or the Jedi haven't taught you. He's trying to, well, clearly manipulate Osha, but in such a manipulative but kind way. He goes from wearing a dark robe to going into the water to bathe to coming out and putting on a light gray robe.