This ain't some hippie documentary, but a rather investigative review.
We all endure sickness and hardship. It is evident that there are many plants that help us cope with life, and even heal from specific problems, by introducing them into our minds and diets. As an added benefit, spending time in natural, lush and comfortable environments, helps us see things differently, and feel better about our lives.
I quite envy the experience that these adventurous people had, and aim to, someday, enjoy it myself, as well.