Looking for a safe experience with magic truffles?

In Amsterdam, or from the comfort of your own home?

Or, do you want to  guide others on their psychedelic journey?

I'm happy to help you! Welcome to my website

I am Dorien, also known as Door of Perception. After more than 25 years of being passionate about this subject, I now dare to call myself a psychedelics expert.

        My services, in a nutshell


  • An online course for safe and meaningful "do-it-yourself" experiences with psychedelics
  • Guided 1-on-1 sessions with magic truffles, in Amsterdam
  • Masterclasses for psychedelic guides (to-be) and for mental healthcare professionals with an interest in psychedelic therapy
  • You can hire me as an expert guide for group ceremonies with psilocybin truffles (in the Netherlands)

As a seasoned psychedelic guide, I create an optimal setting for people who want to use legal psychedelic truffles. For example, because they want to be more in touch with themselves and their feelings, because they want to experience more connection with others or with their environment, break certain patterns or because they are looking for more meaning or depth in their lives. In a program of at least three meetings, I help them get the most out of their psychedelic experience. I also offer consultations to mental healthcare professionals and I guide therapists who want to make their own inner journey. I organize supervision afternoons for starting psychedelic guides and have just launched my first online course, which focuses on the safe home use of psychedelics.


My truffle session with Dorien was life-changing. After more than six months spent in an indecisive, lethargic state, I was able to close a chapter in my life. Dorien gives you the space and safety to let your experience fully unfold. She is fully present with unconditional, loving attention. In addition, she is very grounded and down-to-earth, qualities that do not come naturally in this field of work. I have already referred several friends to her for good reason. (V.B. 29 years old)

If you are looking for a safe and supported psychedelic experience, I would totally recommend Dorien to guide you. She was really transparent about what to expect and helped me make a realistic planning for when the journey should take place. I wanted to rush it, but she advised me to take a step back and make sure that I had the right support system in place to build up to the experience and to help me afterwards. For me the experience was greatly impactful; I felt Dorien had set the right conditions for me to “Trust and Let Go”. The experience opened a new dimension into my being and I was able to regain the ability to appreciate what life is worth living for. (Mary, 29 jaar)

Paarskleurige nevel


Dorien prepared me well for the trip by being very realistic and explaining the practicalities well. It was very clear to me and not too woo-woo, something I'm a bit allergic to. She also listened well to my story and always checked what felt right for me. What I liked is that I could discuss everything beforehand. Even my doubts and what I was afraid of. Because of the good preparation I felt so much confidence that I could really let go during my trip. I had an incredibly beautiful and visual trip. Afterwards, I was full of all the beautiful things I had seen. However, the following week I was also overwhelmed by all kinds of emotions. That's why I was really happy that I could discuss afterwards with Dorien all the things that had happened during my psychedelic experience and how I could integrate it into my life. (Zaida, 36 years old)


When I started looking for someone to guide me through a truffle session, two things were very important: first, I wanted to feel safe to surrender to the experience and, in addition, I wanted a facilitator with two feet on the ground. In Dorien, I found this combination. The result was a truffle session in which I could be completely open and relaxed.

Surrendering to an experience requires trust. This trust was strengthened by, for example, the homework you can do before the session. This starts the journey even before you have taken the truffles. The process is already set in motion. The questions make you think very consciously about who you are and where you stand. The guided meditation allowed me to start the journey relaxed. Everything I had worried about along the way slid into the background. I could effortlessly let myself be carried away by the flow and experience it with curiosity. (Marijn, 50 years old)


Dorien is a professional at heart. From A to Z, she guided me through her journey as a psychedelic coach. She helped me in a life-changing transition. By preparing me very well for the session, putting me at ease and guiding me through the process in a very knowledgeable way, I can resume my career and private life with renewed strength and insight. As far as I am concerned, her sessions should be included in the health insurance fund. A process that every self-respecting person should go through at least once in his/her life. (DH, 40 years old)

I experienced Dorien as a very pleasant guide during my truffle trip, both in preparation and on the day itself. She is committed, experienced and understanding. Not too present, not too absent. I look back on this special and inspirational experience with a good feeling and would, without a doubt, recommend others to go on this adventure with Dorien! (MH)

I experiences a very beautiful truffle trip under Door's guidance. Even after a few months, I still experience the after-effects of the special experience and the valuable insights I gained. The strength of the experience lies not only in the personal guidance, but also in the entire preparation for the truffle trip. The Inspiration exercises helped me get my intention clear. With this, I was able to increase my influence on the process and get even more out of it. The meditation before the truffle journey was very helpful to let go of everything else for a while and be completely ready to get into the experience. All in all, I found it a very impressive experience that still gives me joy in daily life so far. (ME)

I found the music so helpful and would not have been able to find that music on my own. I found your guidance very essential in my process. Not only through the preparatory talks, the inspiration assignments, the meditation and your physical support, but also through your choice of music and sensing when to insert my music into the process. That is truly a gift. (ME)