According to tradition, Chan was introduced around 500 CE by Bodhidharma, an Indian monk teaching dhyāna.
is deeply rooted in the teachings and doctrines of Mahāyāna Buddhism.
Mahayana Buddhism teaches śūnyatā, "emptiness", which is also emphasized by Zen.
But another important doctrine is the buddha-nature, the idea that all human beings have the possibility to awaken.
All living creatures are supposed to have the Buddha-nature, but don't realize this as long as they are not .