Sun and Moon Seal

The Sun and Moon Seal is the fūinjutsu used to seal the Pearl of the Four Directions inside a host.

Usage
After summoning the Pearl of the Four Directions from the Rashinban Tanken, the user can seal it within their body by carving the sealing formula on themselves. Once the sealing is complete, the formula rearranges to form the Ōtsutsuki's clan symbol.

Once the Pearl is sealed within their body, the user can unlock the "true power" of the Rashinban Tanken, allowing them access Minami's Dimension.

Trivia

 * It has been shown that the Five Elements Unseal is not strong enough to undo this technique.