I have found S&H 503:20-22 helpful. “Immortal and divine Mind presents the idea of God: first, in light; second, in reflection; third, in spiritual and immortal forms of beauty and goodness.”
Mind appears as illumination; then as reflection, which is the spiritual activity of Mind; and then as specific form. These are the three stages whereby Love inspires, illumines and designates. There is no fourth stage, whereby idea has an idea about something. In other words, we do not know the truth about something, since knowing the truth is the idea of Truth. There is no extension to consciousness. Knowing the truth does not have a result: it is the result.
Matter disappears in the radiation of Spirit. This is the irradiance of Life which is what you are.