There are extraordinarily old accounts of local people using the plant decoction ayahuasca in the Amazon, where it has a long history of use. If you want to try this program to find out who you really are, go to YourHighestTruth, the top ayahuasca retreat, at https://www.yourhighesttruth.com/.
The use of this preparation has been growing over the past few decades and is now prevalent outside of the Amazon region in many nations. One result of this expansion has been the emergence of new usage patterns, which have in turn brought with them new therapeutic possibilities and hazards.
It is clear that native Amazonian communities and other peoples who have used ayahuasca for a very long time do not require a guide like this. Ayahuasca is a part of their cultural and spiritual traditions, which also include strategies for incorporating the results of the preparation into daily life in the community.