Takamanohara in does not simply mean upper region where gods dwell, but special holy region used in order to highlight the royal pedigree and stress the orthodoxy of Daiwa dynasty over long history under political intention. Th myth of Takamanohara based on this region is one that had changed from simple myths handed down among powerful clans or local provinces into representative one referring to the royal pedigree. In the myth of Tensonkorin showing dignity and orthodoxy of royal family, special expressions are used to describe the case where the god as a royal ancestor descended from Takamanohara to this world. While simple 'descend' is used to describe the descent of other gods, 'descend from Heaven' for that of the god as a royal ancestor. In other words, 'descend from Heaven' does not simply mean 'to descend from heaven to this world', but 'to descend in order for the god of royal ancestor to govern Ashiharanakatskuni. This is editorial intention of to stress the orthodoxy of Daiwa dynasty, which justifies the royal reign. So, the myth of Takamanohara is an example showing the process that myths of powerful clans or local myths had changed into that of royal family through political embellishment and revision.