Son Tinh - Thuy Tinh

Sơn Tinh – Thủy Tinh ("The Mountain's God VS The Water's God," is a famous Vietnamese myth. This myth explains the practice of tidal irrigation and devastating floods in Viet Nam as a result of monsoon (a seasonal prevailing wind in the region of South and Southeast Asia, blowing from the southwest between May and September and bringing rain (the wet monsoon ), or from the northeast between October and April (the dry monsoon ).

Sơn Tinh is also one of the Four Immortals.

Hùng Vương, the 18th King of the Hồng Bàng Dynasty, had a very beautiful daughter named Mỵ Nương. When she grew up and became a woman, the King began his search to arrange her marriage. He wanted to find a special son-in-law, someone who was intelligent, handsome and talented for his beloved daughter. In order to find such an individual, the King held an official contest. Anyone who could prove his worthiness, would be given the hand of his daughter. Princes, scholars, famous writers, gifted artists, wealthy businessmen, and men with various talents from everywhere came to try their best. Among them were two extraordinary men: Sơn Tinh, the Lord of the Mountain, and Thủy Tinh, the Lord of the Water.

King Hùng Vương requested both to showcase their powers. Sơn Tinh waved his hand in the air and trees instantly grew from the ground to make a forest. He just said a magic word and mountains rose up from the earth. Thủy Tinh also had the similar powers. When he waved his hand, the winds began to blow. When he spoke a magic word, the sea level elevated.

However, as both Sơn Tinh and Thủy Tinh met all the criteria required to become Mỵ Nương's husband, it was difficult to choose between them. Eventually, the King decided to present one final challenge. The first man to arrive with specially selected wedding gifts the next day would be granted permission to marry the princess. These unique wedding gifts included a nine-tusk elephant, a nine-spur cockerel, and a nine-mane horse. Early the next morning, as the sun came up, Sơn Tinh arrived first, married Mỵ Nương and took her back to the Tản Viên Mountain, where he lived.

Thủy Tinh came a few minutes afterward. Upon realizing that he was too late, he became extremely furious. He and his servants chased after Sơn Tinh to take Mỵ Nuong back. Unwilling to accept defeat, he summoned torrential rain, gusty winds, thunder and lightning, and also brought the sea level higher, to defeat Sơn Tinh. However, as the sea level rose, Sơn Tinh used his magic to raise the height of the mountains as a counter-measure. Everyone suffered the rage of Thủy Tinh as the floods he caused destroyed land, crops, and houses. In an effort to protect the people, their properties and belongings, Son Tinh created dikes to shield from the rising sea.

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Wikipedia