The poetry in 1900‒1920 forged the ideas of the shedding of blood as the order of things, cleansing through blood, salvation of civilization by blood, justification of sacrifice in a revolution. The idea of the right sacrifice was repeatedly discussed by Plato, Aristotle, de Mester, it formed a basis of the texts by Hegel, Nietzsche, and Marinetti. War was understood as a permanent condition of humankind: it stimulates the development of art, science, frees the society from the evils it caused. This time signaled widespread interpretations of sacrificial blood in the Old Testament and the New Testament. This was manifested in the article of Calvary Christians, in Sventsitsky prose. The poetic description of blood came in the works of proletariat poets, Klyuev, Karpov, Block, and Mayakovsky.