In Greek mythology, Zeus's primary domain is the sky and the rule of gods and mortals. He is known as the king of the gods and wielded immense power over thunder, lightning, and storms. Zeus represents authority, order, and justice, acting as the ultimate lawgiver and enforcer of divine regulations. His influence extended to all realms of existence, and he played a pivotal role in myths that highlight human interaction with the divine, emphasizing themes of power, responsibility, and the morality of actions.