A molecular biologist travels to the Amazon rainforest to investigate a genomic link to human spirituality.... Sparked by a mysterious hallucinogenic experience, Brett Roberts catches his first glimpse of a portal to spiritual awareness. Desperate to find a biological explanation, he enters the field of biotechnology and discovers a novel gene that might help explain the effect. Brett's quest learn more leads him to the indigenous tribes of the Amazon rainforest, where under the guidance of a Yanomami shaman, his next encounter with the drug yopo proves much more enlightening. An answer to the ultimate question is within Brett's grasp, but not if Alfredo Ruiz can prevent it, a nefarious scientist from São Paulo who has been following Brett's experiments for years.