福如东海 - Chinese Idiom Meaning 'Fortune as Vast as the East Sea'

福如东海 (fú rú dōng hǎi) is a Chinese idiom that means 'fortune as vast as the East Sea.' The East Sea (东海 dōng hǎi) is a body of water located off the coast of China, and is known for its immense size and power. Therefore, this idiom is used to describe someone who is extremely fortunate and has great wealth or good luck. It is often used in greetings or blessings for special occasions such as weddings, birthdays, or the Chinese New Year.