The most important part of this letter was 'Sumiyoshi Okami Kengen Shidai' (origin of manifestation of the great gods of Sumiyoshi), which described the origin and enshrinement of Sumiyoshi Sanjin (Sumiyoshi three deities), and in addition to the above, the letter gave a detailed description of the holy precincts of the Shrine, its sacred treasures, Kenzokushin (ancillary deities), its boundaries, and the origin of individual territories.
主要部分は祭神である住吉三神の由来と鎮座について述べた「住吉大神顕現次第｣で、これに加えて大社の神域、神宝、眷属神、各領地の四至や由来などが詳細に述べられている。