The Bright Way's approach to epistemology can be summed up as follows:

1. All animals' intelligence is limited.

2. We are animals.

3. Therefore, our intelligence is limited.

An example often cited is how pet Forest Flyers are afraid of thunder. They'll cower in a corner trembling as a storm rolls through even though they're safe inside. No attempt by their owner to explain to them where the sounds come from, what lightning is, or why they shouldn't worry about it will get them to understand the meteorological phenomenon they're so afraid of. It is utterly beyond their understanding. Yet they're able to hear the thunder all the same.

The innermost circle of the diagram represents the set of all things that are known. It fades gradually into the second circle, representing more and more nuanced and complex topics that can only be grasped by sharper and sharper minds, and gradually expands outward over time as philosophy and science advance. The second circle is the realm of the knowable. It represents all things that can possibly be grasped by mortal minds. Its outer edge is the theoretical limit of yinrih intelligence. They don't know where that boundary lies, but they do know it exists, and that there are things outside that boundary. These are things “Like thunder to a forest flyer” as the saying goes.

The Light resides in this outermost realm of the unknowable, even though its effects on Creation can be seen by mortal eyes.