I wouldn't call them psychedelic per se, or even really a "Jhana" requiring deep concentration. Feeling joy as a result of focusing on something beautiful/interesting is just a fundamental part of being human.

I agree with the author that intense focus can make something more mundane feel special, like intensely focusing on the act of eating an apple, but being moved by walking on a beautiful beach in the evening seems almost expected?

I did do mushrooms frequently at a young age (like a couple times a month from 16-18) so maybe that tweaked something in my brain, but I feel like I slip in "Jhana" all the goddamn time haha. I was tearing up staring at the trees blowing outside while waiting for my dentist a couple days ago.