Ayahuasca is in essence is just DMT, the ONLY results I know of with any long term success involve DMT, or 5-MeO-DMT, however it’s still rare for it to actually work and produce any longstanding results, and requires dedicated effort to maintain and grow.
The biggest indicating factor if your likely to have success is going to be dependent on your own sleep patterns, if you are able to dream frequently despite not being able to voluntarily visualize and still get normal functions, its more likely you could be one of the lucky few.
Which, even if you are, isn’t going to suddenly boost you to hyperphasia territory where you can imagine your own fantasy land and de/reconstruct mechanical designs in your head like einstein and tesla.
IF you are even in that lucky 10% it will still take years of development to cultivate that ability to visualize. At first, once the DMT wears off you would be lucky to change the ambient color of your minds eye and it will take as much effort as physical rehabilitative therapy on a mental level to get you to the point of average people where say you’re able to have a mental space and then imagine a specific object in it like say an apple.
Obviously, its always preferential if psychoactive stimulant’s can be acquired as part of a proper clinical study, or done by those with the resources to document their results. But, trials and access are few and far between so i don’t blame those that strongly consider self medication and experimentation.
My only regret is that when someone like you or I does take that brave step forward, even if they get lucky and they’re one of the few that produce results there’s no EEG scans or other data to provide insight into what / why it works when it DOES, or by what function visualization is being restored.
Everyone who drives several hours to go on a spirit journey and take that ayahuasca is one less person whose reaction to it even has the opportunity to be scientifically studied or understood, and we’re not left with many options for it TO be.
Guess the TL;DR is
“It’s a long shot, but, probably one of the best you’ve got.”