Most astrologers have encountered the Part (or Lot as the Greeks called it) of Fortune, but have little idea of what to do with it. The modern literature on the subject is of little help tending to make it an extremely abstract symbol, something "karmic." To complicate things further, it is now clear that for approximately 50% of all people the Part of Fortune is usually computed incorrectly, namely those persons born at night between sunset and sunrise.
In the beginning Mesopotamian astrology was much like that of other cultures, a simple examination of the heavens for omens that might affect the kingdom. Often these observations of omens would include weather phenomena intermixed with true astronomical ones. What made the Mesopotamians different is that they began at an early time to make systematic observations of phenomena with an eye to finding regular patterns in the heavens that might correlate with patterns in human events.