Most people arrive at a plant medicine retreat carrying one question: Which medicine is right for me? At Blue Morpho Retreats, the answer is rarely one or the other. It is often both used together, in sequence, on a single transformative path toward healing and self-discovery.
For over 24 years, we have guided thousands of people through this path in the Amazon rainforest of Peru. Ayahuasca and San Pedro are the two pillars of our ceremonial work. Each medicine carries its own intelligence. Each reaches a different layer of the human experience. Together, they form a complete arc of transformation that neither could offer alone.
This article walks you through both medicines – what they are, what the science says, how we use them at Blue Morpho, and what you can expect from each one.
Inside the World of Ayahuasca
Ayahuasca is a sacred ceremonial brew made from the Banisteriopsis caapi vine and the Psychotria viridis leaf. It has been used for healing and spiritual practice by Amazonian indigenous peoples for thousands of years. The active compound, DMT (N, N-dimethyltryptamine), produces vivid visionary states that can surface deep emotional material, unresolved trauma, and profound spiritual insight.
Ayahuasca ceremonies at Blue Morpho take place at night. This is consistent with the traditional Amazonian practice: the darkness, the icaros (healing songs), and the guidance of a trained Maestro all work together to create a safe ceremonial container.
At Blue Morpho’s ayahuasca retreat, each ceremony is led by Maestro Hamilton Souther. He has conducted over 1,500 ayahuasca ceremonies across more than 20 years. The brew is hand-crafted on-site. The setting is a custom indoor and outdoor maloca, a traditional ceremonial space, located within a 170-acre private reserve in the Peruvian Amazon.
What Does the Research Say About Ayahuasca?
A peer-reviewed study published on PubMed (NIH) found that ayahuasca produced long-term mental health improvements in clinically depressed patients, with reductions in depression scores observed at one day, one month, and one year post-ceremony.
A second NIH-indexed review concluded that ayahuasca shows promise as a therapeutic tool by enhancing self-acceptance and allowing safe exposure to emotional events – findings with direct relevance to trauma, PTSD, and substance use recovery.
These findings align with what we have observed in ceremonies over two decades. The medicine surfaces what needs to be seen. Integration: the work done after the ceremony anchors those insights into lasting change.
A Closer Look at San Pedro
San Pedro (also called Wachuma or Huachuma) is a sacred cactus native to the Andes Mountains of Peru. It contains mescaline, a naturally occurring psychoactive alkaloid that works differently from the ayahuasca brew. Where ayahuasca tends to go deep and inward, excavating buried material, San Pedro is expansive, heart-opening, and connected to the natural world.
San Pedro ceremonies typically take place during the day. Participants often describe the experience as being held rather than confronted with warmth, an openness, a deep sense of belonging. It is frequently the medicine that people feel more ready to meet first.
San Pedro has been used ceremonially for at least 3,000 years. Archaeological evidence of its ritual use appears in pre-Columbian cultures, including the Cupisnique (1500 BC), Chavín (1000 BC), and Moche (100–750 AD) peoples of northern Peru — all well before Western science took notice.
What Science Says About San Pedro?
A peer-reviewed study published in PMC (NIH’s National Library of Medicine) found that mescaline use was associated with self-reported improvements in depression, anxiety, PTSD, and substance use disorders in 68–86% of participants who reported those conditions. The study also noted that mescaline carries a low potential for abuse. This is consistent with the traditional use of San Pedro as a heart-medicine and mood-opener.
At Blue Morpho in Peru, we hand-craft our San Pedro preparation on-site as part of our commitment to traditional authenticity and safety.
Why Two Medicines? Exploring a Shared Healing Path
Many retreat centers offer one medicine. We offer both. Ayahuasca and San Pedro address different dimensions of the same wound.
Think of it this way:
- San Pedro opens the heart. It creates safety, warmth, and a felt sense of connection. It prepares the emotional body to receive deeper work.
- Ayahuasca goes to the root. It surfaces the material that the heart is now ready to face. It is direct, visionary, and often cathartic.
- Integration ties both together. At Blue Morpho retreats, daily integration sessions with Maestro Hamilton allow participants to process what has arisen in ceremony and anchor it into their daily lives.
This sequencing is not arbitrary. It reflects the layered logic of traditional Amazonian and Andean healing, refined over 24 years of ceremonial practice at Blue Morpho.
The Blue Morpho Setting: Where Healing Happens
Healing does not happen in a vacuum. Setting matters deeply.
Blue Morpho in Peru sits within 170 acres of pristine Amazonian rainforest near Iquitos. The lodge was built in 2006 and is one of the original ayahuasca healing centers open to international guests. Facilities include a custom maloca, private bungalows, a swimming lake, a pool, forest meditation spaces, and an open-air jungle shower beneath the rainforest canopy.
Groups are intentionally kept small. Each retreat is carefully curated so that participants can move through the ceremony with genuine intimacy and dedicated support, not lost in a crowd.
Blue Morpho, founded by Hamilton Souther, is the only retreat center in the world led by a Western-recognized Maestro Medico Vegetalista; a title Maestro Hamilton received through traditional apprenticeship under legendary healer Don Julio Llerena Pinedo in the deep Amazon. This credential is not a certificate from a training program. It is a lineage-based recognition earned over years of traditional practice.
Who Is Blue Morpho For?
Our participants come from over 100 countries. They carry different backgrounds, different challenges, and different levels of prior experience with plant medicine. Some arrive after years of therapy with limited results. Others arrive in the middle of a life transition. Some feel the call to go deeper.
Blue Morpho tours are not set up as festivals or group activities. They are structured ceremonial retreats. Every element, from the pre-ceremony preparation diet to the post-ceremony integration sessions, is designed to support genuine healing.
Common intentions we hear from participants include:
- Releasing long-held grief, trauma, or emotional patterns
- Finding clarity in a major life decision
- Healing relationships with self, others, or purpose
- Reducing anxiety and depression that conventional approaches have not resolved
- Spiritual growth and expanded awareness
Whatever brings you here, both medicines have a role to play.
Your Retreat Experience, One Day at a Time
Before the ceremony, you will prepare your body and mind through dietary guidelines (dieta), which reduce interference with the medicines and support ceremonial depth. Our team provides full guidance.
San Pedro Ceremony Day ceremonies. You will sit or move gently in nature. The medicine opens the heart slowly and gently over several hours. Expect emotional warmth, clarity, and a deep sense of connection to life.
Ayahuasca Ceremony Night ceremonies, held in the maloca. Maestro Hamilton leads each ceremony with icaros, traditional healing songs. The medicine is potent. The experience varies widely from person to person. Facilitators are present throughout.
Daily Integration (throughout the retreat) Every day, Maestro Hamilton holds a Q&A and integration session. These sessions are among the most valuable parts of the retreat. They help you make sense of what arose in the ceremony and translate it into practical, real-life change.
A Word on Safety and Ethics
We take safety seriously. Blue Morpho’s ayahuasca retreat protocols include detailed health intake forms, contraindication screening, and experienced facilitator support throughout every ceremony. No participant is left without care.
We do not rush the ceremony. We do not commercialize it. In a market increasingly crowded with pop-up retreats and weekend-trained facilitators, Blue Morpho Retreats holds a different standard, one rooted in decades of practice, traditional lineage, and a genuine commitment to participant wellbeing.
Maestro Hamilton has been featured in TIME, The New York Times, National Geographic, The Washington Post, and NPR, not because we sought publicity, but because the quality and integrity of this work have earned it.
Things You May Be Wondering
Q: Do I have to do both medicines? No. We work with each participant’s readiness and health profile. Some people choose one medicine per retreat. That said, most participants who do both find the combination profoundly complementary.
Q: Is it safe to combine ayahuasca and San Pedro in the same retreat? Yes, when properly sequenced and facilitated by an experienced Maestro. At Blue Morpho, the medicines are never taken simultaneously. They are offered on separate days with appropriate rest in between.
Q: I have a history of depression and anxiety. Can I still attend? Many of our participants carry those histories. Our intake process identifies contraindications and allows us to prepare appropriately. We encourage all prospective participants to contact us directly so we can speak with you individually.
Q: What makes Blue Morpho different from other retreat centers? Blue Morpho, founded by Hamilton Souther, is the only center led by a Western-recognized Maestro Medico Vegetalista with over 24 years of continuous practice. Our setting, our facilitation standards, our group sizes, and our integration depth are all structured to prioritize your genuine healing, not your experience as a product.
Q: How do I get started? Visit our website or reach out directly:
- Phone: 0051-931-848-983
- Email: [email protected]
Healing Begins with Blue Morpho Tours
Two medicines. One path. Decades of experience holding that path safely for people from all over the world.
At Blue Morpho in Peru, we believe healing is not a single moment. It is a layered, ongoing process, and both ayahuasca and San Pedro have a role to play in it. When used with intention, proper preparation, and skilled facilitation, these medicines do not simply give you an experience. They give you back yourself.
If you feel the call, we are here.
