According to Japanese legend,koi would be transformed into a dragon, if it succeeded in climbing the falls at a point called Dragon Gate on the Yellow River . It became a symbol of worldly aspiration and advancement based on that legend . Generally, the Japanese associate koi with perseverance in adversity and strength. Because of its strength and determination to overcome obstacles, it stands for courage and the ability to attain high goals.
The Koi is the symbol of strength and will, the will to go against odds to reach the destiny and the Dragon is also the power and strength. Koi fish tattoos generally represent for good fortune, good luck and a person’s ability to aspire to be a better,
more advanced part of the universe.
Tubular flags are designed on Children’s Day in Japan , where a black koi means father, mother, red for fire, blue and white koi and red for boys and pink for girls. This also represent koi as a symbol of strength and family unity.