This article presents the story of S. A. Yanovskaya's epiphany—particularly, her shift from hard-line communist orthodoxy and hostility towards ‘bourgeois minded’ Soviet-Russian mathematicians to vigorous support of mathematical logic. In light of this evidence, S. A. Yanovskaya (1896–1966) may be considered as a spiritual leader and administrative founder of modern mathematical research and education in the USSR/russia.