Board Thread:General Discussion/@comment-26830922-20150905023430/@comment-8986886-20150905201559

@Aita666

The sekiseki walls were not built to protect the Seireitei, though. They were built to protect the Soul King Palace, meaning that the spiritual barrier with unlimited Reishi you mentioned normally can't be found in Seireitei. It was literally located in another dimension.

"The sekkiseki walls that surround Seireitei are ordinarily intended to protect the Soul King Palace, instead meant only to fall down to Seireitei in times of emergency. However, if emergencies occur in succession, they remain in place around Seireitei indefinitely until things are returned to normal."