Symphonia harmoniae caelestium revelationum

"Symphonia harmoniae caelestium revelationum" is a philosophical and theological work by the 12th-century thinker John of Salisbury. It explores how divine truth can be understood through harmony and music, proposing that the universe and divine teachings manifest as a harmonious order. The book suggests that spiritual knowledge and understanding stem from perceiving this cosmic harmony, reflecting God's wisdom. Essentially, it links music, philosophy, and faith, emphasizing that the universe’s beauty and order reveal spiritual and moral truths accessible through reason and contemplation.