Tatsu is a mythical creature from Japanese folklore, often depicted as a dragon. Unlike Western dragons, Tatsu are usually associated with water and are believed to bring rain and good fortune. They are often portrayed as long, serpentine beings with a gentle demeanor, symbolizing strength and wisdom. In Japanese culture, Tatsu is also linked to the zodiac, representing the year of the dragon. This connection highlights the creature's significance in various traditions, including art and literature. Tatsu is celebrated during festivals and is a popular motif in Japanese art and architecture.