It's not about hallucinating. The important thing is that it provides a powerful soft reset on highly-habituated thought patterns, reactions, and perspectives.

People who experience depression and anxiety often times have ingrained negative or counter-productive thought patterns and micro reactions that are very difficult to overcome. Sometimes even noticing these patterns is quite tricky.

It makes a ton of sense to me that psilocybin, especially with the guidance of skilled therapists, can have this kind of incredible impact.

How long do you go between really good books? Or vacations to see beautiful scenery? Or really insightful conversations with good friends? Or enjoying a new perspective on a problem? Or between occasional visits with a therapist?

Hallucinogens can be (ab)used as a tool, like many others. The benefit is insight. (again, ymmv)

Hallucinogens are often thought of as a way to cheat your way to mindfulness.

But really, they're more like a trailer or advertisement for mindfulness.

If you get lucky, you only need to take them once.