I don't know about crop circles

but there is definitely a "language" or code that's all throughout the "DNA" of DMT. Me and my close friend who introduced me to DMT talk about this language all the time and it's pretty fascinating. The code or language shows up for me right before the "teleportation" of a full breakthrough dose or during a sub-breakthrough and the language or code flashes itself all throughout the trips. From being imprinted on the walls in my room, breathing with the patterns... to codes and languages literally floating in mid air, spinning, twisting, morphing into all kinds of things. It's incredible... and I believe DMT has an "intelligence" about it.
The language or code looks something like hieroglyphics but instead of being made of familiar symbols like birds and such (which hieroglyphics seem to be made of) there are unfamiliar symbols that I do not know how to describe to anyone.