In 372 CE, a monk was invited from China to the northern Kingdom of Koguryo. He brought Chinese texts and statues with him. Buddhism was quickly accepted by the Koguryo royalty and their subjects. This original Buddhism was elementary in form. The people believed in the law of cause and effect -- "as you sow, so shall you reap" -- and the search after happiness. This simple philosophy had much in common with the indigenous Shaman beliefs and may have been a reason for the quick assimilation of Buddhism by the people of Koguryo.