photo of orange poppy in field of grass & pink flowers in California
white poppy & purple and orange flowers, in meadow in California

   Deep Therapy for  

Meaningful Transformation

Trauma-informed psychotherapy specializing in nervous system healing, somatic integration, and integration of transformative or expanded-state experiences — including preparation and integration support for legal ketamine-assisted therapy.

IN-PERSON PASADENA | ONLINE IN CALIFORNIA

Serving clients in Pasadena, Sierra Madre, and greater Los Angeles.

Therapy that helps insight become integrated, embodied, and lasting.

Depth-Oriented Therapy

Many people reach a point where insight alone is no longer enough. They may understand their patterns intellectually yet still feel disconnected from lasting change.

My work focuses on integration — helping clients translate emotional insight, transformative experiences, and moments of deep awareness into meaningful and sustainable shifts in everyday life.

Through a trauma-informed and somatically grounded approach, therapy becomes a space where insight, embodiment, and lived experience come together.

orange poppy in California

Integration is where meaningful change begins.

My approach

My work integrates trauma-informed psychotherapy with somatic awareness and nervous system regulation to support meaningful and lasting change.

I focus on:

  • Understanding how the nervous system shapes emotional patterns and resilience

  • Moving beyond insight into embodied integration

  • Somatic awareness and gentle attention to physical and emotional experience

  • Trauma-informed pacing that supports safety and deeper processing

  • Translating transformative experiences into sustainable change

This approach allows insight, experience, and embodiment to work together — creating deeper and more integrated transformation.

Jill Sumiyasu, licensed therapist in Pasadena, California; smiling and wearing green dress

I’m Jill Sumiyasu, a therapist in Pasadena, California. I support individuals navigating life transitions, deep personal growth, and transformative experiences through trauma-informed psychotherapy and integration-focused work.

pronouns: she/her/hers

LMFT & LPCC

To learn more about working together, check out my FAQs page.

green meadow with multi-colored flowers, in California
Somatic psychedelic integration therapy Pasadena

Integration & Expanded States Therapy

I support clients in integrating profound and transformative experiences into meaningful, lasting change.

This work may include support for:

  • Integration of psychedelic experiences

  • Preparation and integration for legal ketamine-assisted therapy

  • Spiritual or expanded states of awareness

  • Deep emotional or identity transitions

  • Somatic integration following significant breakthroughs

I do not advise on substance sourcing, dosing, or illegal use.

Who this works for

This approach is especially supportive for individuals seeking depth, integration, and meaningful transformation.

  • Insight-oriented and reflective individuals

  • High-functioning professionals seeking deeper change

  • Clients committed to ongoing personal growth

  • Those interested in somatic and experiential approaches

  • Individuals integrating transformative or expanded-state experiences (including psychedelic experiences undertaken independently or in legal clinical settings)

Therapy with me is…

Therapy that supports meaningful transformation through integration, embodiment, and nervous system awareness.

Psychedelic Integration Therapy in Pasadena

Let’s work together to build your better life.