-- The position of the sun was originally the primary influence in determining when people went to sleep and when they woke up. Although it no longer directly influences us, that pattern is so deeply ingrained in our make-up that our behavior still largely coincides with the positions of the sun.
-- The position of the Moon was originally the primary influence in determining the cycle of human female physiology. Although it no longer directly influences us, that pattern is so deeply ingrained in human make-up that the female cycle still largely coincides with the positions of the Moon.
