I was pissed your thread was closed .. as it's as valid query and not about casual drug use. Research into this in being done again as I understand. This is relevant to dreamwork and the bias-fear against discussing chemicals doesn't belong on this site.
There is a cool documentary on DMT research but I don't have the link ATM. Send me a PM if you wish and I may be able to locate it ...

I'd done lots of LSD+ meditation decades ago... and control is impossible after a point IMO.....Once one enters pure awareness it's like swimming in another dimension, a sea of light-consciousness, and will-ego is nonexistant. Prior to that entry point, I retained some control of sensory selection.

Much of what I experienced remains in subconsciousness ..... as translation is rather tough for conscious mind.

I'd love to agin try chemically enhanced meditation or dreaming sometime, for a TINY energy boost. But DMT sounds more like a space shuttle blastoff, yet is an intriguing prospect, for a unique experience.
I'll likely never use strong psychedelics again, as my meditations are pretty effective, but I AM curious, and given the opportunity, WOULD be tempted.... to use a minimal dose.

Though psilocybin seems a more gentle alternative....
John C Lilly's books are amazing, If you haven't read em , you should. Edgy consciousness research that reads like a Speilburg script. He eventually chose Ketamine over traditional psychedelics for greater control,

Yeah this isn't specifically about LD's but what the hell.........