Cosmic Sister

The Cosmic Sister® Plant Spirit Grant is a merit-based program that supports outstanding women from all walks of life and in different times of life to experience the healing and consciousness-expanding journey of ayahuasca ceremony in the Peruvian Amazon. Ayahuasca, a traditional psychedelic brew, is not only legal in Peru—it is designated as a “Cultural Patrimony” by the Peruvian government.

The Cosmic Sister Plant Spirit Grant program was recently featured in Boston Magazine and Utne Reader. For a current list of stories related to the project, please visit Cosmic Sister's Women of the Psychedelic Renaissance.

Thank you for supporting the Cosmic Sister Women of the Psychedelic Renaissance andCosmic Sisters of Cannabis educational advocacy projects. We appreciate your donation by way of our fiscal sponsorship with the Multidisciplinary Association for Psychedelic Studies (MAPS). Your donation to MAPS for Cosmic Sister is tax-deductible in the U.S. as allowed by law. All contributions made through this form will be allocated to Cosmic Sister, minus administrative processing fees. CLICK HERE TO DONATE

To learn more about how MAPS is changing the world by supporting scientific research into psychedelics and medical marijuana, please visit

Ayahuasca Test Pilots Logo by Zoe Helene

Ayahuasca Test Pilots Logo by Zoe Helene


Ayahuasca Test Pilots

Ayahuasca Test Pilots is a collaboration of individuals who engage in the ceremonial practice of ayahuasca journeying with skilled shamans. Founded by Medicine Hunter Chris Kilham, our purpose is to journey for healing and to explore the spirit landscape, with dignity and respect for La Medicina. Cosmic Sister Zoe Helene, serves as “Co-Pilot”.

“The ayahuasca journey is a sacred and ceremonial experience. If you are going to engage in such a ceremony, do it right, or do not do it at all.” – Chris Kilham, Ayahuasca Test Pilots



Chris Kilham's latest book, The Ayahuasca Test Pilots Handbook: The Essential Guide to Ayahuasca Journeying, provides a practical guide to ayahuasca use, aiding seekers in making right—and safe—decisions about where to go, who to drink with, and what to expect.

“Finally, a well-researched and well-written book on that most powerful of all Amazonian plants! The best book on ayahuasca since Narby's The Cosmic Serpent.” - Mark Plotkin, ethnobotanist and author, Tales Of A Shaman’s Apprentice