Ayahuasca × Psilocybin × Mescaline
Where the Medicine Calls
Not every journey is a retreat.
Not every ceremony is medicine.
And not every altered state becomes healing.
A call to listen more deeply. To meet what has been waiting beneath the surface. To enter a sacred space with humility, preparation, and respect.
These plant medicine journeys are held in integrity — by people with real relationship to the medicine, the land, the lineage, and the responsibility this work requires.
Because the medicine is not entertainment. It is not escape. It is not a shortcut to healing.
It is a threshold.
And thresholds must be entered with reverence, preparation, and integration.
Three paths.
One invitation.
Each medicine carries its own cosmology, lineage, and way of working. None is superior. Each calls different people at different moments. Understanding which one is calling you is part of the preparation.
Ayahuasca
The brew of Banisteriopsis caapi and DMT-bearing leaves — held by Shipibo, Yawanawá, and Cofán lineages. Night ceremony, icaros, purga. The deep dissolution and reassembly of the self.
Full Guide →Psilocybin Mushrooms
Teonanácatl — the sacred flesh. Mazatec veladas, María Sabina's lineage, dendritic spine regrowth and structural rewiring. The mycelium intelligence that dissolves the walls between self and world.
Full Guide →Mescaline
Phenethylamine of the sacred desert — heart-open Wachuma rising with the Andean sun, Peyote carried through the Wixarika pilgrimage. Two traditions, one molecule, 5,700 years of relationship with the land.
Full Guide →Held by experts who work in
integrity with both the medicine
and the territories.
Every retreat and ceremony supported through this work is held by practitioners who meet a rigorous standard — not a certificate on a wall, but an ongoing commitment to practice, supervision, and relationship with the communities and lands from which their lineage descends.
Facilitators who continue to work with the medicine themselves, not as a credential, but as part of their living relationship with it. The container is only as clean as the person holding it.
Ongoing clinical and peer supervision. No facilitation work should be done in isolation. Supervision is the container for the facilitator — the place where difficulty, projection, and counter-transference are worked, not buried.
Deep, ongoing relationship with the communities, elder teachers, and territories where the medicine is held. Reciprocity is not a donation box — it is sustained presence, material contribution, and accountability.
Somatic, attachment-aware, and nervous-system-informed facilitation. Difficult experiences are accompanied — not reframed away, not bypassed. Every participant's history is known and held before the container opens.
Screening, Preparation &
Integration — by Rosa F. Brissos, PhD
Every retreat and ceremony offering in this ecosystem includes access to Rosa's structured screening, preparation, and integration process — delivered individually. This is not a support group. This is not passive listening. This is not spiritual aftercare dressed in soft words. It is a rigorous, neuroscience-informed, somatic, and relational process that begins weeks before ceremony and continues long after.
Because medicine work does not begin when the ceremony starts. And it does not end when the ceremony closes. Preparation creates the vessel. Integration turns revelation into embodiment. It is where insight becomes behavior. Where emotion becomes capacity. Where the nervous system receives enough safety, structure, and repetition to make change possible.
Without preparation, ceremony can become intensity. Without integration, insight becomes another beautiful thing your nervous system forgets.
Before anything else: is this right for you, right now? This is a rigorous assessment — not a gatekeeping exercise, but a genuine care process.
The space between deciding to go and stepping into ceremony is where much of the real work happens — if it is held properly.
The ceremony is a door. Integration is what happens when you walk through it — and keep walking, for months, until what was shown becomes lived.
Where the work
takes place.
Each offering below is held in integrity — with its tradition, its territory, and the people called to it. All include Rosa's preparation and integration program. None include fixed pricing — access is discussed individually, with a sliding scale for those who need it.
Yawanawá,
Aldeia Nova Esperança · Acre
A 10-day immersion in Yawanawá territory — a cultural exchange built on a recently established relationship, not a retreat product. Ceremony, medicine plants, song, and life in the forest with one of the Amazon's most intentional communities.
Ceremonies are held by Chief Iskukua Biraci Jr. (Caçique who leads Aldeia Nova Esperança) or Chief Biraci Jr. Isku Kua — Guardians of two of the largest villages in the Yawanawa community, which sits 7 hours deep into the real forest at an Indigenous Territory. Sanctuaries shielded from urban influence, deeply rooted in ancestral culture and spirituality. A rare opportunity to learn directly and immerse yourself in the wisdom of the Yawanawa lineage.
Psilocybin
Mushrooms
Small, carefully held psilocybin containers in legally permissive jurisdictions.
These are not casual psychedelic experiences. They are deeply prepared, trauma-aware ceremonial spaces designed for people who understand that altered states require safety, discernment, and integration — not performance, fantasy, or spiritual bypassing.
We honour the Mazatec tradition as an ancestral lineage of mushroom wisdom, while weaving it with a Western therapeutic, nervous-system-informed, and scientifically grounded approach. This is work with the intelligence of the mycelium — not around it.
A space where soul and science meet. Where ceremony is held with rigor. Where the body is listened to as much as the vision. Where the medicine is not treated as a shortcut, but as a relationship.
For those called to meet psilocybin with preparation, reverence, and a structure strong enough to hold what may emerge.
Wachuma
San Pedro · Andean
Facilitated by Rosa herself — daylight ceremonies with a fully open heart. She honours the Andean tradition while integrating a Westernised approach that brings people back to presence, joy, and embodied clarity, without bypassing the medicine's spiritual depth.
Ceremonies held
closer to home.
For those who cannot travel to South America, or who wish to work within European rhythms — a small, carefully held container in legally appropriate European contexts. Same standard. Same depth. Same integration.
Facilitators are practitioners who engage in regular supervision, ongoing personal practice with the medicine, and nurture active relationship with both the medicines, the territories, and the communities from which their lineage descends. These are not retreat hotels. These are held spaces.
Rosa F. Brissos, PhD, and every facilitator she collaborates with, have been working with cooperative groups and members, culturally diverse groups, people with cPTSD, people coming from war zones, veterans, and survivors of physical and psychological abuse. She is currently organizing retreats specialized for the corporate world — focused on productivity, longevity, and well-being — as well as special programs for culture-specific groups (e.g., with an Arabic translator).
If you are interested in bringing your group, your organization, or your community, contact Rosa directly.
Get in Touch ↓"Same standard. Same depth. Same integration — closer to home."
Dates are released to the waitlist first. Scroll down to register your interest — your place in the list secures priority access when containers open.
Join European Waitlist ↓All offerings are
by waitlist only.
No prices, no booking links, no checkout flows. Every container is filled through individual conversation — to ensure that each person arrives prepared, that the group is cohesive, and that the work has room to be real.
Yawanawá
Immersion
Chief Iskukua Biraci Jr. or Chief Biraci Jr. Isku Kua. 10-day immersion. Amazon. End of November 2026.
European
Ceremonies
Ayahuasca, psilocybin, or Wachuma. Portugal, Netherlands, Switzerland — context-dependent.
Psilocybin
Mushrooms
Small structured containers. Music-supported. Somatic facilitation. Full preparation + integration with Rosa.
Wachuma
· San Pedro
Facilitated by Rosa. Andean tradition with open-heart westernised integration. Groups of 10–15. Daylight ceremony.
Bring Your Group,
Your Organization, Your Community
Whether you're coordinating a group retreat, a corporate wellness program, a culturally specific container, or something that doesn't fit a standard format — this is the place to start that conversation directly with Rosa.
The first step is
knowing you're ready.
Wherever you are in the process — curious, preparing, or recovering from a previous experience — begin with a conversation. No obligation, no sales process.