MAPS is one of the few organizations in the USA legally permitted by the FDA & DEA to conduct clinical research into using schedule 1 substances as medicines to assist psychotherapists and other medical professionals. If you genuinely believe that psychedelics hold potential help improve mental health, MAPS is the organization that bringing these ideas to clinical trial.
In addition to clinical research they also do a lot of public education on harm reduction and safety regarding psychedelics, so they’re an excellent resource for people who have questions or could possibly benefit from participating in a clinical trial.