At peace? The fact that he wrote this long post shows that he is not at peace. And it's not like it was just a vent piece that he didn't expect to get attention, he posted a link to it on /r/minecraft.
They have an involvement in the process/phenomenon, but it is the mind that is doing the majority of the work (the actual implementation of "shows"). And, as science has well demonstrated, the mind is a highly unreliable instrument, and is a particularly important one in that it renders "reality" itself.
I'm a big fan of this essay, mainly for this one line:
>> There are these two young fish swimming along and they happen to meet an older fish swimming the other way, who nods at them and says “Morning, boys. How’s the water?” And the two young fish swim on for a bit, and then eventually one of them looks over at the other and goes “What the hell is water?”
