What is "rerikhism"

Rerikhism or Roerichism (Russian: Рерихи́зм, Рерихиа́нство, Ре́риховское движе́ние) is a spiritual and cultural movement centered on the teachings transmitted by Helena and Nicholas Roerich. It draws ideas from Theosophy, Eastern and Western religions, Vedic and Buddhist traditions molding them into the Russian culture and Russian cosmism.