Mindfulness-based psychedelic therapy

At the Center for Medicinal Mindfulness, a legal psychedelic therapy clinic in Boulder, Colorado, we have led thousands of people through cannabis-assisted and ketamine-assisted psychedelic therapy sessions that have brought major breakthroughs in their lives. We help them to heal trauma, PTSD, depression, anxiety, grief, and feelings of meaninglessness.  

Since our founding in 2012, we have become an established leader in the emerging field of psychedelic therapy. Our vision is to heal and transform humanity and our shared ecology through education, facilitation, and integration of safe, legal psychedelic practices.

We work with legal medicines (cannabis, ketamine) in both individual and group settings. We offer private retreats, trainings, and community events.

We are also an intentional community of healers and activists that promote safe psychedelic use for personal and global healing and transformation.


Cannabis can be psychedelically potentiated by certain growing, aging, blending, and mixing techniques. When such a blend is used in a guided setting with intention, ceremony, and reverence, the cannabis experience is a powerful yet gentle gateway to transformation, for ourselves and for society. Our clients commonly report experiences that are as potent and psychedelic as MDMA, Psilocybin, Ayahuasca and even DMT.

“I’m receiving a blessing, with a side of healing.” – Cannabis-assisted psychotherapy participant

Special blends psychedelically potentiate the cannabis being used in the treatment


  • Experienced psychonauts who are curious about psychedelic cannabis and want to experience it. 

  • People new to psychedelics who want to journey with a powerful and safe medicine.

  • People who have tried traditional therapies and have not been satisfied with the results. 

  • People who are suffering from depression, PTSD, anxiety, trauma, and feelings of meaninglessness. 

  • People who want to be trained to safely hold space for others on the healing path. 

  • People who believe in the power of psychedelic medicines to heal trauma on an individual and societal level and want to be part of a larger community that is working towards that goal.

“Groundbreaking and grounded, common sense and liberating….”

Rick Strassman, author DMT, The Spirit Molecule (left) with Daniel McQueen, author, educator, and co-founder The Center for Medicinal Mindfulness

“Is a highly reliable botanical psychedelic legally available throughout most of the US? The answer is a resounding “yes,” and the details of that answer reside in this book. As with many discoveries in this field, it began with McQueen’s serendipitous discovery of how, with the proper dose, set, intention, and setting, marijuana can produce the same psychedelic effects that occur with “classical” compounds like DMT and psilocybin. This book provides guidance every step of the way: personal preparation, selection of cannabis strains, methods for “getting enough,” managing the experience, and integration. Most highly recommended!” 
Rick Strassman, author of DMT the Spirit Molecule.



Our team of clinicians, therapists and guides offer psychotherapy, consulting, coaching, psychiatry, training, and supervision in both individual and group settings from a transpersonal, psychedelic, and clinical perspective. 

We believe all healing is relational. Our practitioners provide a compassionate and understanding place for you to explore healthier ways of being in relationship with yourself and others. With clinical backgrounds treating trauma, depression, and other mental health challenges with psychedelics, we have an in-depth understanding of how the use of these medicines in safe settings can support mental and emotional well-being.


Psychedelic Sitters School is a credentialed program that trains  therapists and non-therapists to work as psychedelic guides. We teach mindfulness-based psychedelic journeywork practices that allow our students to safely facilitate transformative psychedelic healing experiences for their clients, while deepening their own self-exploration. 

 The Psychedelic Activism track of our program explores the use of psychedelic medicines for self, societal, and worldwide ecological healing. Currently offered online for the duration of Covid-19. 


The Heartship Experience is our way of bringing the psychedelic cannabis journeys we offer at our clinic to a wider network in a grassroots, affordable, and organic way. We train guides in the Medicinal Mindfulness protocols to lead local conscious cannabis journeys safely and effectively in their own hometowns, within their own communities. We believe that the work we are doing — at our clinic and throughout the psychedelic movement — is migrating towards a new paradigm of awakened consciousness. The Heartship Experience events and training bring our conscious cannabis circles to a wider network.

set, setting & skill

Most in the psychedelic community know the concept of “set and setting,” which refers to having the right mindset and the right setting in which to take psychedelic journeys. But what’s missing from this equation, in our estimation, is skill. Journeyers are often not taught how to navigate these experiences, so they are at the mercy of the medicine. 

At The Center for Medicinal Mindfulness, we teach people how to work with the medicine: to breathe, to focus, to stay present during difficult experiences, to surrender when that’s what’s called for, to engage with the spirit of the plant, and to manifest and integrate after the journey. With these skills, healing happens faster and more effectively.


Ketamine is a safe, legal, and highly effective psychedelic medicine used to treat depression, trauma and anxiety. It’s a dissociative anesthetic that, when used in low doses, produces psychedelic and euphoric states. When used in conjunction with psychotherapy, it’s effective at breaking through stuck patterns often associated with depression, trauma, and anxiety. The medicine brings forth subconscious material that, when integrated with the help of a therapist, can be understood and healed. 

Primary Orientation

by Daniel McQueen

Native American traditions speak of the medicine hoop, which honors the symbolism of the four cardinal directions, and reminds us of our place in the cosmos and our place on the Earth. There is nothing more anciently human than orienting our location and direction with the stars and heavens. The symbol of the circle, and aspects of cycles of life related to the four directions, is universal and can be found in all indigenous traditions and mystical traditions throughout the world, from paganism to Buddhism and even in traditions of High Magic. This symbol has also been adapted in “Depth Work” and “Parts Work” and is also present in Transformational Alchemy. As I studied Alchemy it became evident that there was a correspondence with the seven stages of alchemy and the cardinal directions, including the direction of the Earth below, the sky above, and that within. Click the plus sign to read more.
This concept guides the work we do at Medicinal Mindfulness. It helps ground us, and reminds us of our practice. It creates a solid structure for us to practice within, both a “ship” that allows us to travel through new possibilities, as well as a “crucible” that helps transform us in our healing process. 
In many traditions, the West represents the subconscious, the unconscious, the emotions, and diving deep into our psyches. On our circle, the West represents the Psychological: the clinical work we do. It’s the healing work, it’s trauma resolution, it’s depth and meaning and soul work. 
The North often represents the wisdom that comes from experience, and the intellect of the rational mind. In our practice, we acknowledge the important role of scientific inquiry and discovery, and the best practices created from existing psychedelic research that so many before us have dedicated their lives to. We base our programs on research models that we know work. This direction also represents using discernment as we explore new possibilities. 
The East often represents our connection to Spirit and to community. At Medicinal Mindfulness, these ideas — spirituality, prayer, community — are always part of our practice. We see no need to separate the spiritual, the ceremonial, the sacred, from the rest of our work. It wouldn’t feel complete. Many people come to us seeking psychological care, but realize during their time with us that what was really missing from their lives was connection to Spirit. 
The South, symbolic of  embodiment, creativity and play, represents the importance of aesthetics and our body’s natural intelligence. Curiosity, self expression, art, music and our body’s natural healing intelligence are all centrally important to our transformational process. 
Each of these directions and aspects of healing are part of the medicine space that we create at our center; they are also embedded in every program we offer.
 I’ve described the horizontal directions, but there is also the vertical axis, the transpersonal dimensions of this work. The above: the sky, the universe, the cosmos, the sacred, transcendent and our future possibilities. And below: the Earth, honoring the sacredness of the physical, the manifest, the abundant, as well as our ancestors and our past. We’re all part of the Earth and we come from the Earth. Working in a way that’s aligned with the planet is part of everything we do at our Center. 
And then there is the center of the circle, the still point within, the reflection of all that is inside each of us. It’s the sacred place within ourselves that makes us who we are — the spark of genius, of soul, that belongs uniquely to you. It’s our hope and our mission at the Center for Medicinal Mindfulness to help that spark, that light, shine as brightly as it can within each of you as empowered and self-actualized human beings.


Dr. Alyse Power

Dr. Alyse Power


Emily Boeschenstein, MA, NLC

Emily Boeschenstein, MA, NLC


Mali Jimenez, MSW, LCSW

Mali Jimenez, MSW, LCSW


Alison McQueen, MA, LPC, ATR

Alison McQueen, MA, LPC, ATR


Daniel McQueen, MA

Daniel McQueen, MA


What People Are Saying

Attending the conscious cannabis circle was a profound, deep, beautiful, spiritual experience. I was surprised at how powerful and insightful it was. I truly want all of my friends to partake of this transformative adventure of the highest kind.

Brigitte Mars, participant, brigittemars.com

Read more Testimonials


Medicinal Mindfulness and the whole MM crew are outstanding. The program is one of a kind (literally) and gave me the needed knowledge base and experiential wisdom and confidence that can only be acquired through this method of learning. Thank you to Daniel and the whole MM team! -JL



For me the support and container of safety and wisdom, combined with a mindful approach to sacred plant medicine is a vehicle of growth and inner transformation, and an ever growing personal awareness of my connection and place. -MM Participant & Student

Everyone I have met through the medicinal mindfulness events are warm, loving, and unique people that are a joy to interact with. The events themselves, always have a profound effect, yet, are very tranquil for me. It’s very obvious Daniel takes pride in using different music to create an experience. And really has a knack for reading the energy of each session. I have come to look forward to each event and hope to see many more in the future. -MM Student and Participant

We met back in September and you gave me some great guidance and counseling around starting to incorporate the use of cannabis instead of the psychotropic medicines I had been taking for quite some time. I am happy to report that I am completely off the antidepressant I was taking for many years and have been using cannabis in a very low dose controlled and intentional way for the past eight months. It is a great medicine, and has really changed me for the better. -Anonymous.

It is rare to find such a distinguished group, truly committed to its core values and enthusiastic to share, and enthusiastic to share its practices and grow with those willing to participate, share, and learn. I look forward to continuing my exciting and transformative journey with medicinal mindfulness, a unique, and forward thinking group of trained facilitators who consistently push the envelope and watch it bend. -MM Event Participant



Group Psychedelic therapy

Several years ago I was standing in front of the stove, cooking mac and cheese for my little girl, and staring off into space. I was daydreaming  about the building I had designed to support our Conscious Cannabis Circles and my daughter walked up to me and showed me her doll., “Daddy, my baby’s name is Heartship,” she said. I looked at her misunderstanding and replied, “Hardship? Why would you name your baby Hardship?” And she looked at me and said, “No, Daddy, Heartship. My baby’s name is Heartship.” She was maybe three at the time. “Heartship,” I said, repeating it, staring back into that space I was in, and saw my event building and realized the shape of it was two hearts superimposed on each other, facing opposite directions. I had already used the analogy of the ship for years by then, so there it was, “Heartship,” named by my three year old in a very odd and synchronistically timed exchange.