首楞嚴義疏注經 9.23

9.23

From the previous lesser light, yet more light is emitted; the manifestations of light multiply, which is called "light and light ignite each other." The manifestations of light are perfectly luminous, illuminating the worlds of the ten directions; the environment purifies with the light, everywhere becoming lapis lazuli. Due to meditative absorption gradually increasing, the light of meditative absorption shining forth must be without boundary, hence named Limitless Light.