Poseidon is the Greek god of the sea, and one of the Twelve Olympians—the major deities in ancient Greek religion.
The Sea and all waters
Earthquakes (hence his title "Earth-shaker")
Horses and chariot racing (yes, really!)
Brothers:
Zeus – king of the gods, sky & thunder
Hades – god of the underworld
Parents:
Cronus (Titan) and Rhea
After the Olympians defeated the Titans, the three brothers divided the cosmos:
Zeus got the sky
Hades got the underworld
Poseidon got the sea
Trident – his iconic three-pronged spear, used to stir the seas or cause earthquakes
Horses – believed to have created the first horse (sometimes credited with inventing them)
Dolphins, bulls, and sea creatures often accompany him
Widely worshiped in coastal cities and islands, especially in Corinth and Athens (where he lost a contest to Athena).
Sailors and fishermen prayed to him for safe voyages.
His name was invoked during horse races, storms, and earthquakes.
Both Poseidon and Athena wanted to be patron deity of Athens.
Poseidon struck the ground with his trident—a saltwater spring (or a horse) emerged.
Athena gave the olive tree.
The people (or King Cecrops) chose Athena, as her gift was more useful. Poseidon was salty—literally and metaphorically.
In one myth, Poseidon created the first horse as part of a divine competition.
In some versions, horses sprang from the sea foam.
Poseidon is the main divine antagonist of Odysseus in Homer’s Odyssey.
Why? Because Odysseus blinded his son—the Cyclops Polyphemus.
Poseidon cursed Odysseus to wander the seas for years before returning home.
Poseidon isn't just a sea god—he's also a deep symbol of emotion, instinct, chaos, and primal power:
Represents the subconscious, like the ocean—vast, mysterious, uncontrollable
The divine masculine in its untamed form
A Jungian symbol for emotional depth, power surges, and even psychic storms
Often seen as rival to gods of intellect or order (like Athena)