In the previous video I mentioned a meditation exercise that I sometimes use to give myself a quick refresh when I’m feeling mentally tired or my eyes aren’t staying relaxed.
People call this the hypnagogic state, or hypnagogic hallucinations, but like many aspects of the mind and vision it is not well understood by modern science. I don’t consider them hallucinations at all.
I stumbled onto using it for this purpose on accident. I’ll be lying in bed entering this state, expecting to go to sleep, and I’ll suddenly feel much more alert right away and end up getting back up and working on the computer for another hour or two.