Ise Jingu is the collective name for 125 shrines, with their official name being “Jingu”.
Their main enshrined deity, Amaterasu Omikami, is the center of an uncountable number of deities, and is likened to the sun.
Although many deities appear in Japanese mythology, among them, Amaterasu Omikami, the ancestor of the imperial family and the supreme deity of the Japanese people, is said to be the most precious.
This is the reason why Ise Jingu is said to be the highest shrine in Japan.