Small though they are, precious stones are particles of matter capable of holding cosmic power

"Small though they are, precious stones are particles of matter capable of holding cosmic power. But you shouldn't rely on them and believe they will protect you, heal you and give you powers; if you don't do any work, they will be useless. A stone is a sort of aerial, and like an aerial it needs a function, messages to transmit. Around the stone, there are forces moving and vibrating, but it is up to you to focus them, to give them direction.

Each precious stone has already been prepared by nature to pick up certain energies from the cosmos and broadcast and propagate them. But just possessing a precious stone is not enough if you wish to benefit from its properties; you have to learn to use it to do your own inner work."