Why did soldiers on the western front in World War I dig and fight from trenches?

After the early moments in the war, the armies on the western front were forced to dig trenches to protect themselves. This is because of the artillery and machine guns being set up on both sides.

it depends on which society you are referring to. many civilization performed rituals so the gods would with their growing season but the most well known is that of the aztecs. they would make sacrifices, usually animals, but sometimes humans as well.