In the books “Reformers: Luther. Calvin. Pascal” (1939–1940) and “Spanish Mystics: St. Teresa of Jesus. St. John of the Cross. Little Teresa” (1940–1941), Dmitry Merezhkovsky brings his reflections on the fate of Christianity in the world to a close—always, as closely as possible, linking events from past centuries with the present. In the first trilogy, the subject is the “external” reformers; in the second, the “internal” ones—whose mystical experience, as Merezhkovsky believes, is meant to transform the three great branches of the Christian Church into a Universal Church.