Since Hahnemann postulated miasms, they have remained difficult to understand and therefore controversial. What are miasms and where do they come from? What relationship do they have with each other? The well-known author and lecturer Dr. Rosina Sonnenschmidt has been dealing with miasms since the beginning of her homeopathic work, drawing on her earlier experiences as a professional singer of ancient music epochs, and has understood them as expressions of collective disease dynamics. Together with the renowned miasm researcher Peter Gienow, she has developed a miasmatic model that reflects and can be substantiated in our own cultural history. In the application to patient work, the use of this model has already proven itself many times - in accordance with the cosmic rule "as above, so below." The author describes her new book as a work that has grown over a long time.