Such tendency became conspicuous during the insei period (during the period of the government by a retired Emperor), and they say that it could be because it was necessary to emphasize existence of the emperor in Chokusenshu during the period in which the dynasty negated regency and moved toward conflicts with the power of the samurai.
こういった傾向は、院政期に入って顕著になってくるもので、王朝が摂関政治の否定、そして武家勢力との対決へと向かう中で、勅撰集において天皇の存在を大きく打ち出していく必要があったのではないか、とされている。