What is the nature of vibration?

No science is ever correct because no subject is ever exhausted.

Sound is vibration, colour is vibration, all life is vibration.

Colour is the sensation produced in the imagination by vibration filtered through the finest ether. The vibrations of colour are finer, infinitely so, than sound. One is length, the other concentrated intensity. That is, the colour waves are length and the thought vibrations are intensity.

This may help to explain the oneness of the Universe with its infinitely varied forms.

Take a flute. You blow through that flute seven different notes, each separate in form and size, even shape, yet all is caused by atmospheric vibration, all using the same energy exactly.

Are there any more colours than those known to earth?

My thought about the number of colours was that it was infinite if only our eyes were acute enough to detect them. You might, for instance, if we use the analogue of sound, make a chromatic scale so gradual that instead of twelve tones there would be say twelve times twelve. So we might have even more literally a very gradual chromatic scale in colours.

—Spinoza In Spirit

The Twentieth Plane—A Psychic Revelation