Denise Matthijssen

Overview

Denise Matthijssen is a therapist, relationship coach and co-founder of Grounded Travels based in the Netherlands. She brings extensive experience from the Dutch mental-health sector and works with adults seeking personal growth, emotional insight and relational clarity. Her work centres on creating safe, well-structured contexts in which people can explore inner patterns, emotions and beliefs with care and responsibility.

Within Grounded Travels, Denise facilitates guided psilocybin truffle journeys supported by preparation and integration coaching. She approaches this work as a tool for self-inquiry and personal development rather than therapy, helping participants translate insights into practical changes in daily life. Her style is grounded, trauma-sensitive and non-dogmatic, combining psychological depth with clear boundaries and safety considerations.

Best for

Denise’s work is suited to adults interested in personal development, emotional regulation and relational exploration through guided psychedelic experiences. It may be particularly relevant for individuals or couples wanting to work with habits, intimacy, meaning or self-understanding in a structured and supportive setting.

• Adults seeking personal growth or emotional insight
• Individuals exploring relationship or intimacy patterns
• People interested in guided psilocybin journeys with preparation and integration
• Couples wanting a shared reflective experience

Approach

Denise integrates psychological and experiential methods, drawing on Acceptance and Commitment Therapy (ACT), Internal Family Systems (IFS), yoga, breathwork and mindfulness. Each journey is embedded in a clear process: an initial screening to assess suitability, preparatory coaching to clarify intentions and expectations, the guided truffle experience itself, and structured integration sessions afterwards.

She emphasises grounding, consent and respect for individual processes. During journeys, participants are supported in a calm, mostly silent environment designed to allow inner experience to unfold safely. Integration coaching focuses on making sense of insights, emotions and memories that arise and applying them in everyday life through reflection and practical exercises.

Support

Denise provides preparation and integration coaching both online and in person. She carefully screens participants and clearly communicates contraindications, including psychotic disorders, bipolar disorder and serious physical conditions. She encourages participants to consult medical professionals regarding medication interactions and makes clear that the journeys are not a substitute for medical or psychological treatment.

Her background in relationship therapy and trauma-sensitive work informs a supportive, contained approach. She offers follow-up contact and an integration workbook to help participants continue their process after the journey. In couples journeys, she applies her relationship-therapy expertise to support communication and connection.

Practical details

Denise works through Grounded Travels in Ingen, Netherlands. Psilocybin truffle journeys are offered in person, with preparation and integration sessions available online or in person. Individual journeys, couples journeys and small group retreats are available. A free screening conversation is required before booking.

• Location: Ingen, Netherlands
• Formats: individual journeys, couples journeys, small group retreats
• Structure: screening, preparation coaching, guided journey, integration coaching
• Pricing: from mid-hundreds of euros depending on format
• Language: Dutch

Training

• Extensive experience in Dutch mental healthcare
• Certified relationship coach and ACT trainer
• Author of multiple books on Acceptance and Commitment Therapy
• Trained in Internal Family Systems (IFS), including IFS and sexuality and IFIO
• Member, trainer and supervisor with the Dutch Association for Relationship and Family Therapy (NVRG)
• Completed psychedelic practitioner training with an experiential training institute
• Qualified yoga teacher and trained in breathwork
• Background in Ayurvedic vegetarian cooking

Disclaimer:

This description was generated based on information from the official website and other materials provided by the provider.