From the symbolical point of view every person is, so to speak, tuned to a certain pitch in his individual evolution, and he stands with respect to another person just as C on the piano stands with respect to G, or E to F. This shows why a person can get on harmoniously with a certain person, but is inharmonious with another. It is not the fault of the F or G on the piano if they sound inharmonious together, it is the combination of the notes that causes the disharmony. It is not always the note that is inharmonious; it is a wrong combination that makes it inharmonious. Spiritual perfection makes man the keynote which is in harmony with all notes, and even that perfection shown to the world by Christ caused his crucifixion.