It's a plant derivative, the guy who made my batch was some viking dude named Lonnie. Smoked it from a water pipe, extracted from koa tree roots but you can apparently make it from a number of different plants. If you take enough I've heard there are some common themes to the trip like the sensation of a higher intelligence/being present, some folks I knew claim to have seen some blue godlike entity spouting wisdom but I didn't take a ton because I wasn't ready for a full on trip. I just got a heavy body load, almost felt out-of-body and my vision kind of devolved into fractals which was cool. Best part was it only lasted for about 10 mins but I assume if you take more you'd trip harder. Very similar high to ayahuasca without the nausea...can highly recommend. If you're into that sort of thing I mean
Both, the old farm was right on the coastline