Every individual vibrates to some particular measure.
All matter has a sounds, all matter pulsates,and all matter has its own color.

Each human being can therefore be made to give forth some specific sound.
In making that sound he flashes into color, and the combination of
the two is indicates his identification, which is peculiarly his own.

Every unit of the human race is on some one of the seven rays, therefore in some, one color
predominates, and in some, one tone sounds forth. There are Infinite gradations and many shades of
color and tone. Each ray has its subsidiary rays which it dominates, acting as the synthetic ray.

These seven rays are linked with the colors of the spectrum. There are the rays of red, blue, yellow, orange, green and violet. There is the ray that synthesizes them all, that of indigo. There are the three major
rays, red, blue and yellow and the four subsidiary colors which, in the evolving Monad, find their correspondence in the spiritual Trinity and the lower man.The synthesis manifests as Indigo.

The matter of the rays and their colors is confusing. The clue lies in similarity of color, which has a resemblance in note and rhythm. Therefore, when a man is on the red and yellow rays, with red as the primary ray, and meets another human being who is on the blue and yellow rays, with a secondary resemblance to the yellow, there may be recognition. But when a man on the yellow and blue rays, with yellow as the primary color, meets someone on the yellow and red rays, the recognition is immediate and mutual, for the primary color is the same.