Letting GO and Letting you Characters go their own way

There comes a point in my writing where my characters start to do their own thing, for lack of better phrasing.  It’s the point where the characters are so developed that you don’t have to tell then what to say because their personality and their interactions with the other characters tell you what they are going to say or do next.  But as great as it is as a writer it can be a difficult thing because it means giving up some of your control as a writer.  And lets face it what writer doesn’t like to be in control of their work.  But I have found that where I do let go I have more fun with what I am writing and I like the end product more often than not.