SAGITTARIUS (Nov. 22-Dec. 21): Astronauts on lunar expeditions have orbited the moon and seen its entire surface, but the rest of us have never seen more than 59 percent of it. As the moon revolves around the Earth, it always keeps one side turned away from our view. The second most important heavenly body, which is such a constant and intimate factor in our lives, is half-hidden. I'd like to propose that there is an analogous phenomenon in your inner world: a part of you that forever conceals some of its true nature. But I'm pretty sure you will soon be offered an unprecedented chance to explore that mysterious realm.