I hiked about 3 kilometers to my shelter (lean-to). I started the fire and watched the sun set. I instantly noticed that when all you’ve got is a fire and darkness, time stands still. When I felt like an hour had passed and looked at the time, it turned out to be eight minutes later. Maybe I was just bored. In that case I would recommend some boredom every now and then.

My stress was completely gone. No stress whatsoever from work nor from the experiment itself. I just stood there, watching the fire and darkness around me. I meditated a little and then hit the hay.

"I would recommend some boredom every now and then."

Not bad advice at all.