In the Tao Te Ching it is written: “darkness within darkness, the gateway to all mystery.”
Could we not write light within light? I think the meaning would be the same. You cannot see light without relative darkness.
And if we believe the quantum physicists, as we likely should, then there is an infinite light everywhere none of us see. This is darkness–we don’t see it–but there is no reason to suppose we do not catch moments of it, here and there.
Perhaps I am talking nonsense. It is often very difficult to distinguish highly abstract profundity with random arrangements of words which seem to mean something, but don’t.