A Mesopotamian Ritual

According to history textbook I'm reading for my Early Civilizations Course, in Mesopotamia the king would have sex with the high priestess in order to giver fertility to the land and ensure a good harvest.  Pretty interesting, ja?  That could be a could plot conflict for a story......

Anyway that's your Mesopotamian Ritual for the day!

The history textbook is An Introduction to the Ancient World by L. De Blois and R.J. Van Der Spek Second Edition.