As the days grow longer the process reverses. The pineal gland is sensitive to light and along with the rest of the endocrine system, acts to trigger the body into keeping in unison with the environment . Animals follow precise seasonal patterns of mating, hibernation and migration. All three are linked to seasonal differences in sunlight. A lot that is done by instinct by animals is culturally motivated in people.
Social patterns tie people to their culture and culture to nature.
An example is the aborigines. For generations they have followed the same imperceptible paths which have been communicated through song and memorized for generations. The songs didn't just transmit information but according to thei r belief, the singing of them renewed plant and animal life. The earliest evidence of symbolic expression was thirty thousand years ago from the Old Stone Age. People began scratching tally marks in ivory and bone to track the phases of the moon.