We will know light when we become light.
For now we can only theorise.
This is my theory.

a bit of dark matter

Space is made up of a matrix of tiny prism like diamonds.

a matrix of static dark matter

the front half of a neutrino

Light moves through space by attracting
and repelling dark matter with the
gravity of its motion.

The front half attracts
and the back half repels.

After each revolution rotations reverse.

the back half of a neutrino

light in motion

Above - Shows a plane of light moving through the matrix of dark matter.

Due to software limitations, light is shown here
moving in a square when it should be moving in a spiral.
The colours and highlights are to show the motion.

Below - Shows a plane of dark matter being moved by a beam of light.

space in motion

The crossover is when the magic happens.
It's when all light in the universe unites.
It's what connects everything together.
It's the buzz, can you hear it.

This will be shown when this gets
made into a 3D animation.
Until then use your imagination.