What is the significance of Poseidon's connection to horses in Greek mythology?

In Greek mythology, Poseidon's connection to horses symbolizes his power and influence over the sea and land. Horses were seen as majestic creatures, and by being associated with them, Poseidon was portrayed as a powerful and authoritative deity. Additionally, horses were essential in ancient Greek society for transportation, warfare, and agriculture, further emphasizing Poseidon's importance in shaping human civilization.