Swedenborg, Emanuel - The Infinite - Harmony and songlines
Type of Spiritual Experience
A description of the experience
The vibration of membranes is always in the ratio of the distance from the centres and if these are as the mutual distance, then the vibration is thoroughly harmonic.
All this applies to membranes which are geometrically constituted with a centre, in other cases the harmonic ratios are most nearly represented among the asymptotes in a hyperbola