Now available for the first time in English is an unrivaled classic: an indispensable work on the evolution of Swedenborg’s philosophical system. Swedish scholar Martin Lamm shows that Swedenborg’s scientifically based worldview was not changed by his religious revelations. Rather, the visions completed and corroborated the picture. Each explains the other—Swedenborg’s theological system remains unintelligible without establishing its relationship to the philosophical concepts developed in his scientific works.