The sun, moon, stars an planet and God's purpose

I think the sun, moon, stars and planets greatly influence the life forces in the universe. Think about, when the sun is out and it is light outside, we are awake, when the moon comes out and it is dark outside, we go to bed. Those people who work at night always have problem with their sleep cycle, when you travel to another time zone, you experience jet lag. There are animals and other life forces who cannot stay awake during the day and some that sleep most of the days of the year, God, the universe, created the planetary system to guide us through life.