This is a rather long essay, but worth reading for a summary of photographic tradition in Japan:
In Japanese, the word for “photograph” is “shashin”. It is made up of two ideograms, “sha” meaning “to reproduce” or “reflect” and “shin” which means “truth.” The Greek etymology of the word “photograph” is to write (graphein) with light (photos). Therefore, in the Japanese mind, the process itself consists in capturing the truth, or the essence of the matter and “making a copy” of it on a surface. Consequently, the result will always contain a certain element of truth. Since the advent of photography, this way of seeing things has become commonplace throughout the world, but in very few languages is the concept expressed with such clarity.