Kāśyapa Mātaṅga and Dharmaratna were, according to ancient tradition, the Indian monks who first introduced Buddhism into China. It is said that the Emperor Ming (58-75 CE) had a dream in which a golden image appeared in the west. So moved was he by this strange dream that he sent a group of envoys beyond the western borders of China to find out what they could about this image. This was in about 64 CE.