[Gallagher]

Aha! A more comprehensive view will tell you the Rising, Sun, and Moon signs... All showing different aspects of the personality, aye? The Sun sign is what most people know. It's the obvious. But it doesn't tell the whole story. The Moon indicates your... subconscious self, if you will. How you'll be when things start getting to be too much and you run on instinct instead. The Rising is rather like... what your aspirations may be in life, or how you'll mature, and their reflection on how you present yourself.

You are right, though. The year, month, day, even hour all come into play. Most people don't feel like they fit into their signs because they hardly even scratch the surface.