Researchers observed slow spontaneous fluctuations in the brain's visual centers that preceded visual hallucinations in blind people. (1)

Weird. Even blind people see.

At the end, what might be missing is what we all crave for: Not seeing anything... Detached from the cosmos...

Only then we might see things that we do not see...

And the cosmos will go away...

And while being alone in the dark, we will not help but wander...

(Where is the cosmos?)