What is ruyi jingu bang?

Ruyi Jingu Bang is a legendary magical staff wielded by the Monkey King in the Chinese novel "Journey to the West". It is said to be able to change its size at will, growing as tall as the sky or shrinking to the size of a needle. The staff is also incredibly heavy, but the Monkey King is able to wield it effortlessly due to his immense strength.

In the novel, Ruyi Jingu Bang is given to the Monkey King by the Dragon King of the East Sea, who had originally stolen it from the undersea palace of the Dragon King of the West Sea. The staff is said to have been originally used by the latter to suppress the oceans and create equilibrium in the world.

Ruyi Jingu Bang is a symbol of power and authority in Chinese mythology and is often depicted in various forms of art and literature. It has also been referenced in popular culture, including video games, movies, and TV shows.