We can only sense photons if they strike our retina.

Some say the universe is mostly dark with a tiny percentage of light.

I disagree.

The universe is saturated with light; every square inch of it but most of the photons aren’t striking objects and then your retina. Most are just hauling ass to the very edge of existence unconcerned with being seen.

Bruce Lee advised to be like water. Become light; become ungovernable.