Lady Ra Ra

The Great Sphinx is associated with the Egyptian sun god, Ra.  Ra is a highly known god in Egypt, the citizens will pray for Ra to have a safe journey through the sky pulling the sun along through the day.  Then in the night the Egyptians thank Ra for the good day, I still wonder what the sun god Ra has to do with the Great Sphinx?  Some people think that the Great Sphinx represents the Pharaoh Khafre because it was built right in front of his pyramids, but the weird thing is that the Great Sphinx was built after Khafre's rein!?!