 This may be expressed allegorically through the use of the persona of a friend or historical figure (a safer course in the case of a poet-official who might be punished for any too blatant criticism of the current emperor).In a "fu" elaborately describing the exotic luxuries possessed by the nobility at the royal courts described so lavishly there is an implied contrast with the life of suffering and deprivation experienced by the common folk, implicit to the reader, but not directly stated.A rhapsody on the royal hunt, and the vast slaughter of creatures powerless to save themselves from the majestic power of the royal hunt for the enjoyment of the ruler also invites the reader to make a comparison with the nature of imperial political power in human society.