I have some experience in the matter that may be interesting. The first time i had dmt, it was yellow and white colored. I figured that it wasn't very pure and proceeded to smoke it. It rocked my world, the visuals were so dark and a feminine presense could clearly be felt. At that time i didn't know what it was. When i smoked that paticular dmt on mushrooms it was like a full on orgasem for an hour long. I was just moaning in my bed with pleasure, it felt like i was really being worked over in a good way heh.
The last time i smoked that paticular batch was the first time i had an entity contact on dmt. I took the rip of dmt and for some reason i felt the urge to go lay on my bed. My bed was glowing bright red, i put my hand on the bed and i could feel a presence there, when i sat down the dmt high changed considerable. I felt like i was in the loving embrace of a woman. I felt loved. That's when things started to click in my head. I realised that i was being influinced by something completely different then dmt. It made me wary, and broke me out of my trance. I felt the urge to leave the room and talk about my experience with my friend. When i started getting up the visuals changed completely. There was this ripple effect in the walls that made it look like i was walking through water. It was extremely hard for me to move at first. I felt like i was being pulled back into the bed, this just made me even more determined to get out of there.
So i made it into the bathroom, i figured i went down to baseline because i didn't feel like i was tripping very hard anymore. And then i saw it... This large black tentacle comming from my bedroom that looked like it was made of thick black smoke, with a tint of blue in there. Immidietely i though it was a bad spirit taking advantage of my state of mind, i went to go back into the bedroom to see what was connected to the tentacle. There was this cloud just hovering over my bed with 6 or so tentacles all reaching across my bedroom. I will admit, i was a bit scared at first but then my instincts kicked in and i realised that i must will this thing out of my bedroom or risk having a permenent house guest. I walked up to it and just willed it to leave. I imagined it getting sucked out of my window and dissapearing into the night and never comming back. And it did.
Looking back now, maybe i should have approached the tentacle monster with an open mind, it could have been the spirit of the plant...
I believe that this was jungle spice that i smoked because the visuals were so different then pure dmt. Pure dmt for me is so light, vibrant, so much easier to handle. This stuff i smoked was Dark... sensual...perhaps a little wrong i don't know for sure. Whatever it was i want more of it lol.