"Psychedelics are to psychology what the telescope is to astronomy"
In some cases and conditions ^
As with all things, the intention behind the action is key. Taking psychedelics with bodichitta in mind would be fine.
Curious to see the opinions on Ayawaska here?
To your average person, it's just another psychedelic, but those who advocate it will often emphasize that the Ayawaska vine it's self is a Sentient being, which also provides the capability to perceive other sentient beings who are co-existing in other states parallel to our physical world but existing beyond the normal sense perceptions.
A sentient being capable of communicating directly and indirectly and able to manifest visually, usually for the benefit of healing and self and sometimes no-self realization.
I hope and expect to see in the very near future a lot more correlation between Amazonian Shamanism and the insights of Buddhism. Of course, boundless compassion and emptiness is the highest realization to arrive at, but i think along the way, building a better "Map" of the non physical realms and planes that coexist with our own, yet fall outside of the metaphorical or internal samsaric states and restraints will be of great benefit.
***Edit. Sad to see that the Ayahuasca and budhism thread was locked. For those that happen to stumble upon this thread again, hopefully we can get a useful and mindful diaologue on the move again. I do not believe shamanism and Buddhism to be conflictive topics with correct understanding of both and i propose that certain psychedelics including ayawaska can actually provide the biological and psycho-spirtual framework to allow one's conciousness to become detached from one's body and navigate between the Bardos ,realms and planes and retrieve information & Terma for various reasons, encounter external sentience and even directly
experience concepts like interdependence and emptiness etc (That being said, there are always risks and potential for further obscurarions and clinging with what one experiences, especially without the relevant preparation)