Just in case you might want to brush up on your astrology, and wizardry.
My first thought was that it might have something to do with understanding crimes, torts, defenses, etc., by understanding their elements. For example, common law larceny has several elements: (1) trespassory (2) taking and (3) carrying away of (4) the property of another with (5) intent to steal. Or negligence: (1) duty, (2) breach, (3) causation, (4) damages. And so on. This was a big part of our Criminal Law class, so maybe your school teaches it as a foundation for Crim Law, or something.