In the biblical account of creation, for instance, the first command of creation is “Let there be light: and there was light.” The first and most pure form of material manifestation is light.
Likewise, the first and most pure material manifestation of your Silent Master consciousness is light. Light is the link between who you are as pure consciousness and who you are as matter. Pure light is unformed and unshaped like pure consciousness, yet it is the medium that shapes and forms itself into material manifestation. It is the link between the formed and the unformed. The candle meditation connects you with this aspect of yourself energizing this inner aspect of your being by focusing on it.