God

Gods could be considered the culmination of the thoughts of men. Hopes, ideals, theory, will, and belief over a specific thing all create mental energy, and enough mental energy can form together into a god. Many gods have a specific idea they represent, though some are more generic and have changed overtime.
Many belief system have developed around gods. Some ancient religions have worshiped them, and some have feared them. Many religions are now thought of as having their origins in gods, though some claim to have true 'divine origin' - an origin greater power of some being not simply created through belief.