In the Iliad, Poseidon appears to us as the supreme god of the seas, commanding not only waves, currents and tides, but also coastal and marine storms, causing coastal springs and landslides with his trident. Although their power seems to have extended to springs and lakes, rivers, in turn, have their own deities, despite the fact that Poseidon was the owner of the magnificent island of Atlantis. Poseidon generally used water and earthquakes to exercise vengeance, but he could also have a cooperative character.
He helped the Greeks a lot in the Trojan War, but he took years to get revenge on Odysseus, who had injured the baby of one of his Cyclops. Sailors prayed to him for favorable winds and safe travel, but his mood was unpredictable. Despite the sacrifices, which included the drowning of horses, he could provoke storms, bad winds and earthquakes on a whim. Considering that Poseidon's countless amorous adventures were all fruitful in descendants, it should be noted that, unlike the descendants of his brother Zeus, the sons of the god of the seas, like those of his brother Hades, are almost all evil and temperamental. violent.
Some examples: from Teosa, the Cyclops Polifemo was born; the giant Crisaor is born from Medusa; Amimone is born Nafplion; with Demeter is born Despina, goddess of winter who ends up with everything that her mother and her half-sister Persephone cultivate, also freezes the waters; with Ifimedia, the giant brothers Oto and Efialtes (the Aloidas) were born, who even went so far as to declare war on the gods. In turn, the children he had with Halia committed so many atrocities that his father had to bury them to avoid further punishment. He also married Anfitrite, daughter of Nereus and Dóris, from whom his son Triton, the god of the ocean abyss, was born, who helped Jason and his Argonauts to retrieve the Golden Fleece and Rode, who married Hélio.