The answer to this is that...This alone is the light… This means that each function depends on a particular combination of lights designed to produce precisely that function with its unique characteristics. This is connected with our discussion below of the purification of BaN. We cannot ask, “Why these combinations rather than any others?” For the Supreme Will knew that in order to bring forth existence in the necessary way, it was precisely these combinations of those roots that were required, no less and no more.