"One of the best spiritual exercices is to meditate on light. Leave aside all your other preoccupations and concentrate on light, as if your life depended on it. You may imagine this light to be coloured, but it is preferable to picture it as being white, because white is the synthesis of all other colours. White brings together the omnipotence of violet, the peace and truth of blue, the wealth and eternal youth of green, the wisdom and knowledge of yellow, the health and vigor of orange and the strength and dynamism of red.
Once you are really able to concentrate on light, once you feel it as a living, vibrating, quivering entity where all is peace and fullfillment, you will begin to become aware that it is also music, this cosmic music we call the music of the spheres, the song of all that exists in the universe, and you will breathe in the fragrances that emanate from it. There is no work more worthy and powerful then your work with light."