Vibration travels in 90° golden mean spirals a bit like the image below. This vibration is outside of spacetime although it is frequently referred to as a sound. Yet it is really the “sound outside of sound” and is technically the golden mean infinite spiral of the unmanifest creation vibration. You will never see this shape in nature, yet everywhere it is implied.
Light, however, IS manifest and travels in Fibonacci spirals which forms the image below. The light is copying the creation vibration above with curved lines which we see as light. You may also notice that the Fibonacci spirals form hearts or even apples. Hence the expression “apple of your eye”.
This pattern is also reflected in galaxies, which in a macro sense are also “eyes”.
This is why our eyes are oval and not round, and why tree leaves take this shape for photosynthesis. In order to pick up light, our eyes must emulate the shape that light takes as it travels. This is the vesica piscis.
There is of course no such thing as the macrocosmos or the microcosmos. They are both manifestations of the same wave signature: as above, so below.