yeah, wanttoheal explained that well. DID is you- but seperated. so the voices are you (or thoughts) but seperated. They have something to share or say and need to be heard.
If the thoughts are ordering you, telling you things in a way that is dangerous, then that needs to be worked with. I had alters who do try to cause me harm, but it is because they were taught to cause me harm. So i still have to work with them.
hope that helps.