Abstract: The discourse of space sanctity is the major components of Shinto ideology in middle ages. The origin of Ise Shrine sanctity has two interpretations according to early Shinto theories. One supposes that the sanctity of Ise Shrine is equal to the Hinowakamiya, and the other one thinks it's equal to the Palace of Brahma. The Hinowakamiya mode reflects a universal pattern which the sun palace and the moon palace are compatible in Buddhism. Thus, the view comes out that the inner palace and outer palace are compatible and equivalent. In the Palace of Brahman mode, Shinto created new mythical stories, such as Amenominakanushi and Amaterasu live in the Palace of Brahma, Yamatohime built Ise Shrine through moving the Palace of Brahma, ToyoukeOmikami flew to next place from first meditation heaven and wait for the new, etc. The early Ise Shinto accepted and extended these new mythical stories, reserved the basic plot while it didn't use the word "the sun palace, the moon palace" or the "Palace of Brahman. Buddhistic space concepts were all replaced by more native word like Hinowakamiya. Ise Shinto has stitched and adopted many kinds of cultural resources such as Japanese mythologies and Buddhist scriptures, therefore it explains the significance of Ise Shrine as sacred space.

Key words: Ise Shrine, Hinowakamiya, palace of Brahma, medieval Shinto, sacred space