International Gathering on March 10th to Tackle the Most Critical and Overlooked Phase of Psychedelic Healing
Barcelona, Spain — On March 10th, 2025, Barcelona will host a Global Integration Summit, bringing together leading practitioners, researchers, and wisdom-keepers from five countries to address what many participants describe as the hardest part of plant medicine work: what happens after the ceremony ends.
As ayahuasca, psilocybin, and other plant medicines move from the margins to the mainstream—with clinical trials underway at major universities and cities worldwide reconsidering prohibition—a critical gap has emerged. While scientific attention focuses on the acute effects of these substances, accumulating evidence suggests that the real transformation happens in the weeks, months, and years that follow. Yet structured support during this crucial window remains woefully inadequate.
The Barcelona summit will explore integration across multiple domains: therapeutic integration, somatic integration, sexual integration, and the ecological dimensions of plant medicine work—bringing together perspectives that have historically remained siloed.
The Integration Crisis
Recent data paints a stark picture: while over 5 million people are projected to participate in ayahuasca ceremonies outside the Amazon by 2030, current research indicates that 72% of participants describe integration as more challenging than the ceremony itself. More troubling still, only 9% receive any form of structured aftercare.
The consequences of this gap are beginning to surface. Without proper support, profound insights can fade into confusion. Participants return to unchanged life circumstances carrying visions of transformation but lacking the tools, community, or guidance to implement them. Some experience what practitioners call “re-entry friction”—a disorienting mismatch between expanded consciousness and contracted daily reality.
“We’re seeing people have these extraordinary experiences that crack open their worldview,” explains a common observation among integration therapists. “But then they go back to the same job, the same relationships, the same patterns—and they don’t know how to bridge those two worlds. That’s where the real work begins.”
What Integration Actually Means
Integration is not simply remembering what happened during a ceremony or talking about it in therapy. Recent longitudinal studies tracking 1,630 ayahuasca participants over 18 months reveal that integration unfolds in distinct phases:
The acute rebound period (0-72 hours) often brings fatigue, emotional volatility, and physical adjustment as the body processes the experience. This is followed by re-entry friction (3-21 days), when participants must reconcile insights with everyday obligations. The longer assimilation phase (1-12 months) involves genuine identity shifts, value reordering, and establishing new patterns. Finally, some enter a generative phase (beyond 12 months) characterized by teaching others, creative expression, and ecological stewardship.
The Barcelona summit will explore how integration manifests across multiple domains:
Therapeutic Integration
How do we translate visionary experiences into measurable mental health improvements? What role do traditional psychotherapy models play, and when do they fall short? Speakers will examine evidence-based approaches and share clinical outcomes from various therapeutic frameworks.
Somatic Integration
Plant medicines often unlock trauma stored in the body. The summit will demonstrate how movement practices, breathwork, and body-centered therapies help participants embody their insights rather than simply intellectualize them. This represents a crucial bridge between extraordinary states and ordinary embodiment.
Sexual Integration
This emerging field addresses how plant medicines can surface sexual trauma, shift relationship patterns, and reconnect individuals with their erotic selves. With shame and silence still surrounding sexuality, specialized integration support in this domain remains critically underdeveloped. The summit will create space for practitioners to share approaches and establish best practices.
Ecological Integration
Perhaps the most overlooked aspect: ceremonies frequently catalyze profound ecological awakening. Participants report intensified grief about environmental destruction and a visceral sense of interconnection with nature. Speakers will explore how to channel this awakening into sustainable action rather than paralyzing despair, and how reciprocity with source ecosystems can itself become a powerful integration practice.
Cultural Integration
For Westerners engaging with Indigenous medicines, integration must include grappling with issues of cultural appropriation, reciprocity, and the privilege of access. How do practitioners honor traditional contexts while adapting practices for different cultural settings?
Evidence for What Works
Emerging research is beginning to clarify which integration practices produce lasting benefits. A 2021 randomized controlled trial at the University of São Paulo compared three approaches: participants who received only a goodbye PDF, those who engaged in eight hours of individual psychotherapy, and those who joined 12-week group integration circles combined with monthly community action projects.
The results surprised many clinicians: the group circle with community action outperformed individual therapy, with effects driven primarily by increased social connection and enhanced sense of meaning. In fact, multivariate analysis across multiple studies shows that hours spent in one-on-one psychotherapy ranked 11th among predictors of positive outcomes, explaining less than 2% of variance.
Instead, the strongest predictors were:
- Weekly contact with an integration circle or mentor
- Regular nature exposure (at least 3 hours weekly)
- Creative ritual practice such as music, art, or writing (at least twice weekly)
- Strong perceived social support
- Concrete reciprocity actions, such as donating to conservation projects
This challenges conventional therapeutic assumptions. The focus has been on the medical model—patient, therapist, clinic. But the data shows that communal, somatic, and ecological practices may be more powerful.
Further validation comes from neuroscience. A 2023 fMRI study at Imperial College London found that participants who engaged in a six-week dance and movement integration program showed persistent default mode network changes four months later—comparable to pharmacological interventions but without requiring additional dosing.
The Sustainability Imperative
The summit will also confront an uncomfortable truth: the explosive growth in plant medicine use is creating ecological and social harm in source regions.
Wild ayahuasca vines now trade at triple their 2013 prices, with some Amazonian ports exporting over 30 tons monthly. Yet Banisteriopsis caapi is a slow-growing liana requiring 8-10 years under old-growth forest canopy to develop therapeutic potency. Current harvest rates amount to what ethnobotanists call “ecological mining”—extraction without regeneration.
Sessions will present the emerging concept of “reciprocity as integration.” This framework suggests that true integration must include concrete actions that give back to source communities and ecosystems. Pilot programs requiring retreat centers to fund vine replanting and Indigenous education have shown remarkable synergy: participants who engage in reciprocity actions within three months of their ceremony report significantly better long-term outcomes.
When someone contributes to reforesting or supports Indigenous education, they’re not just doing a good deed—they’re completing a circle. They’re transforming the experience from consumption to participation, from extraction to genuine relationship.
Building Infrastructure for Scale
As plant medicines transition from underground practice to regulated therapy, integration infrastructure must be built proactively, not retrofitted as an afterthought.
Several practical innovations are emerging in the field:
Integration circles, which moved online during COVID-19 restrictions, demonstrated unexpected resilience. A retrospective analysis of 467 participants in remote circles showed outcomes equivalent to in-person groups on depression measures, suggesting this model can scale globally while maintaining effectiveness.
Integration coaches and guides—distinct from therapists—are emerging as a new professional category. These practitioners combine deep personal experience with plant medicines, training in multiple modalities, and the ability to hold space without pathologizing non-ordinary states.
Digital integration platforms are being developed to provide 24/7 support, psychoeducation, and peer connection for participants navigating the integration process.
The Barcelona summit will showcase these innovations and explore how they can be scaled responsibly while maintaining quality and cultural sensitivity.
A Field Coming of Age
The Global Integration Summit represents a maturation moment for plant medicine work. For too long, the field has been characterized by charismatic facilitators, ad-hoc practices, and a resistance to systematization. While preserving the sacred and mysterious dimensions of this work, practitioners are recognizing that sustainable growth requires shared standards, evidence-based practices, and professional accountability.
Plant medicines are going mainstream whether we’re ready or not. The question is whether this unfolds chaotically, with people falling through the cracks and ecosystems being depleted, or whether the field can be intentional—building the support structures, doing the research, training the practitioners, and ensuring reciprocity with source communities. This summit represents the latter path.
As one Shipibo curandera observed in recent research, “The ceremony is the seed; integration is the harvest. If we neglect one, the entire garden dies.”
The Barcelona summit invites everyone touched by plant medicines—participants, practitioners, researchers, and Indigenous knowledge-keepers—to engage with the critical work of integration: the ongoing, daily practice of translating extraordinary insights into sustainable, values-aligned change.
The Global Integration Summit takes place March 10th, 2025 in Barcelona, Spain, featuring speakers from five countries addressing therapeutic integration, somatic integration, sexual integration, and ecological reciprocity in plant medicine work.
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