Song painting in the Litang style illustrating the theme “confucianism, taoism and buddhism are one”. Depicts taoist Lu Xiujing (left), official Tao Hongjing (right) and buddhist monk Huiyuan (center, founder of Pure Land) by the Tiger stream. The stream borders a zone infested by tigers that they just crossed without fear, engrossed as they were in their discussion. Realising what they just did, they laugh together, hence the name of the picture,Three laughing men by the Tiger stream.
Source: from http://www.npm.gov.tw