Boris Nikolaevich Bugaev, better known by the pen name Andrei Bely or Biely, was a Russian novelist, Symbolist poet, theorist and literary critic. He was a committed anthroposophist and follower of Rudolf Steiner. His novel Petersburg (1913/1922) was regarded by Vladimir Nabokov as the third-greatest masterpiece of modernist literature. The Andrei Bely Prize, one of the most important prizes in Russian literature, was named after him. His poems were set to music and performed by Russian singer-songwriters.

Anthroposophy is a spiritual new religious movement which was founded in the early 20th century by the esotericist Rudolf Steiner that postulates the existence of an objective, intellectually comprehensible spiritual world, accessible to human experience. Followers of anthroposophy aim to engage in spiritual discovery through a mode of thought independent of sensory experience. Though proponents claim to present their ideas in a manner that is verifiable by rational discourse and say that they seek precision and clarity comparable to that obtained by scientists investigating the physical world, many of these ideas have been termed pseudoscientific by experts in epistemology and debunkers of pseudoscience.