The Sentinel Presents: The Boulter Method
With Reanna Costa
August 14 - 17, 2025
A 4-Day Immersion into Truth, Compassion & Responsibility
The Boulter Method is a profound and deeply transformative approach to self-inquiry, emotional healing, and personal growth. Rooted in somatic therapy, breathwork, and integrative self-work, this method is designed to help individuals break free from unconscious patterns, embody their fullest expression, and cultivate a life anchored in truth.
At its core, The Boulter Method is built on three fundamental pillars:
🜁 Truth – The courage to see ourselves clearly, to acknowledge the stories we tell, and to meet life as it is rather than how we wish it to be. Truth is the foundation of real transformation.
🜁 Compassion – A radical practice of self-acceptance and presence. It’s about softening the harsh judgments we carry and learning to hold ourselves and others with kindness, even in our most vulnerable moments.
🜁 Responsibility – The practice of personal sovereignty—owning our choices, our healing, and the way we show up in our relationships and the world. Responsibility is not about blame; it’s about reclaiming our power.
Why This Retreat?
Over the course of four days, you will be guided through a deeply experiential process to embody these principles. This is not a passive learning retreat—it is an immersion into self-work that moves beyond theory and into lived experience.
This will be done through powerful teachings, group process, and experiential practices that allow you to uncover where unconscious patterns are living within you—not just in your mind, but in your body, your emotions, and your nervous system.
You will be invited to track and recognize the ways you have learned to protect yourself, the ways you resist truth, struggle with self-compassion, or avoid taking full responsibility for your life. Through this awareness, we create the conditions for real transformation—where outdated survival strategies can soften, and a more integrated, authentic version of yourself can emerge.
Through somatic inquiry, breathwork, movement, and guided inner work, you will:
- Identify and release unconscious blocks that keep you stuck in repeating patterns
- Learn how to navigate truth without self-abandonment or bypassing discomfort
- Cultivate radical self-compassion and integrate the parts of yourself you may have rejected
- Understand what authentic responsibility looks like—one that is not driven by guilt or external expectations, but by sovereignty and self-trust
- Develop a deeper relationship with your emotions, your nervous system, and your capacity to hold both challenge and expansion
- Experience a guided forest medicine ceremony to deepen your connection to truth, compassion, and responsibility from within
- This retreat offers a rare opportunity to do this deep work in a setting designed to support transformation—held in a beautiful, natural landscape, surrounded by a carefully curated community of like-minded individuals, and facilitated with experience, care, and integrity.
Whether you are new to self-inquiry or have been walking this path for years, The Boulter Method provides a clear, structured, and deeply effective way to meet yourself with honesty, presence, and compassion.
What’s Included
This all-inclusive retreat at The Sentinel in Kaslo, BC, provides a beautiful and deeply supportive environment to engage in this transformational work.
- Comfortable accommodations in a stunning natural setting
- Nourishing, farm-to-table meals to support your process
- A thorough intake and preparation process to ensure you arrive ready to engage fully
- Daily yoga & embodiment practices to anchor your experience in the body
- A guided psilocybin mushroom ceremony held with care and deep intention
- Post-retreat integration support to help you apply insights into your daily life
- Access to an epic hot tub & sauna for relaxation and deep integration
- Time to reconnect with nature on the pristine shores of Kootenay Lake
Tentative schedule:
Thursday, August 14th:
1:00-3:00 pm Arrive and settle in
3:00-6:30 pm Introductions | Opening Circle | Foundational Teachings
6:30 pm Dinner and rest
Friday, August 15th:
8:30-9:30 Yoga with Josana (optional)
9:30-10:30 am Breakfast
10:30-1:30 pm Deepening Teachings & Embodiment practices
1:30-2:30 pm Lunch
3-5 pm Teachings & Embodiment practices
5-7pm Rest | Hot tub | Sauna | Prepare for Ceremony
7 pm Forest Medicine Ceremony
Saturday, August 16th:
8:30-9:30 Yoga with Josana (optional)
9:30-10:30 am Breakfast
10:30-1:30 pm Boulter Method Breathwork and sharing circle
1:30-2:30 pm Lunch
1:00am-5:00 pm Rest | Hot tub | Sauna | Bodywork Sessions
5:00-6:30 pm Restorative Somatic Yoga with Reanna
6:30 pm Dinner
Sunday, August 17th:
8:00 – 9:00 am Yoga with Josana (optional)
9:00-10:00 am Breakfast | Check out by 10:00am
10:30-1:00 pm Closing Circle
This is an intimate retreat with limited spaces to ensure personalized attention and deep integration.
Are you ready to meet yourself with Truth, Compassion, and Responsibility?
Reserve your spot today.
BOOK A CALL with Reanna here: https://calendly.com/reannacosta/inquiry-zoom
About the Leader

Reanna Costa
Reanna is a powerful and masterful teacher who has dedicated her life to uncovering the mysteries of our body-mind. After 14 years of teaching and 1500hrs of training in anatomy, philosophy, inquiry and trauma, Reanna has synthesized together a blend of works and teachings to create a powerful method of creating freedom within the Self. […]
Learn more about Reanna CostaCategories : Forest Medicine, Plant-Based Medicine