https://www.vice.com/en_us/article/y3wzk7/silicon-valley-psych-dmt-hyperspace-

Hopping goblins made of shifting shapes, clown dimensions replete with impossible jesters, and recurrent purple cosmic girlfriends—these are just some of the mysterious motifs that occur more than coincidence should allow when taking N,N-Dimethyltryptamine (DMT), the ultra-powerful psychedelic that allows users to seemingly travel to the outer reaches of the cosmos and beyond.

One of the most fascinating things about DMT is that many trips follow a specific pattern and many users experience similar realms. Amateur psychonauts—cosmic cartographers, if you will—have been "mapping" the "DMT realm" on their own for years. But an emerging branch of academic researchers—and more recently, venture capitalists and AI researchers—are now attempting to map the DMT realm using rigorous, repeatable science.