I was surprised to observe that a quality I thought immutable - the order of the colors in the spectrum - was altered to generate not only color, but pattern. The small bursts of violet are in an unexpected place relative to the other refracted colors.
We've talked about projection before. It's what the viewer brings to the picture. The message a viewer gets could be the one the artist intended to reference, but experience and belief systems influence what a viewer will see and/or think about any composition.
This picture is a good example of one that can be appreciated for its own sake, as an abstract study of colors against a grid, but it will probably suggest spiritual content to some viewers. This is the democracy of the artful composition. We are allowed to see whatever we want!