If want to have a very psychoactive trip and an amazing spiritual experience try a legal herb that comes from the Sage family. It is called Salvia Divinorum and is widely available on the net. Just make sure you get the extracted form and you get it from a trusted source. It is all natural and can be mixed with MJ easily because you also smoke it. I do not recommend it for anyone not familar with a psychoactive state of being, because it can be heavy at times. However it only lasts a short period of time, which is much more attractive compared to shroomies or LSD and it's 100% legal. This herb was used by shaman and medicine men to cross over to a alternate dimension. This is something I have experience with and it is not to be taken lightly but if your someone who likes to cross over every now and again it is a good choice. As far as hallucinating off of MJ, I definitely have experienced some pretty altered states but never full blown visuals. Hope this was informative. Peace !