Primary source analysis Chapter 7, which is entitled “Demons and spirits”, centers on two postmortem halves of the person – demons and spirits or yin and yang – and unites three selections of extracts from some written works by the representatives of the Han dynasty proving that these two phenomena can be regarded both as the concepts of different kinds and as the concepts that can be integrated on some basis. The author of the first selection exhibits functions of some social customs based on demons and spirits taking into consideration their social utility. The second selection, written by ...