It is said that the great Silla-era monk Wonhyo was traveling to Tang China to study there when he spent a night in a tomb. In the night he woke thirsty and drank water from a bowl. In the morning he realized the drink that had so refreshed him in the night was dirty water in a skull, which enlightened him to the truth that all things are created by the mind. This led him to give up on the idea of going to China for his studies. He continued his theological work back in Silla, where he popularized #Buddhism among the common folk.
