HyeJin Yu is a sound practitioner, voice and sound meditation guide, song circle facilitator, and composer based in San Mateo, California. She is the founder of Ground in Sound, a method that invites joyful exploration of sound as a path to connection, healing, and presence. Fascinated by the ways vibrational sound therapy, vocal meditation, mantras, and chants can support balance in body and mind, HyeJin has trained as a Sound Healing Practitioner under Minna Sivola of Harmoniaalto and Lauren Waggoner of Soundology, is a certified teacher of Yoga of the Voice from Silvia Nakkach’s Vox Mundi School of Sound and Voice, holds a certification in Integrative Sound and Music from the New York Open Center, and is a certified Song & Chant Leader through Heather Houston’s Sisters in Harmony program.

Her work weaves together vocal meditation, healing chants, and vibrational sound to create safe, restorative spaces for both individuals and groups. With a compassionate presence and uplifting energy, she guides participants in releasing stress, reconnecting with themselves, and awakening their own inner capacity for healing. Rooted in both personal healing and years of training, HyeJin’s intention is to support others in being fully present, in-body, and in joy—so they may become healers of their own body, mind, and spirit.

HyeJin Yu is a sound practitioner, voice and sound meditation guide, song circle facilitator, and composer based in San Mateo, California. She is the founder of Ground in Sound, a method that invites joyful exploration of sound as a path to connection, healing, and presence. Fascinated by the ways vibrational sound therapy, vocal meditation, mantras, and chants can support balance in body and mind, HyeJin has trained as a Sound Healing Practitioner under Minna Sivola of Harmoniaalto and Lauren Waggoner of Soundology, is a certified teacher of Yoga of the Voice from Silvia Nakkach’s Vox Mundi School of Sound and Voice, holds a certification in Integrative Sound and Music from the New York Open Center, and is a certified Song & Chant Leader through Heather Houston’s Sisters in Harmony program.

Her work weaves together vocal meditation, healing chants, and vibrational sound to create safe, restorative spaces for both individuals and groups. With a compassionate presence and uplifting energy, she guides participants in releasing stress, reconnecting with themselves, and awakening their own inner capacity for healing. Rooted in both personal healing and years of training, HyeJin’s intention is to support others in being fully present, in-body, and in joy—so they may become healers of their own body, mind, and spirit.

RE:START | A ONE-DAY SHAMANIC MEDICINE RETREAT

Hosted by Tree of Life Healing Center for the Soul
Facilitated by Dr. Nathan Teismann & Tiffany Allen
January 2026 | San Mateo, CA | Limited to 10 participants

Step into the new year with an open heart, a clear mind, and the courage to begin again.

This intimate one-day Shamanic Medicine Retreat invites you to experience profound renewal through a sacred blend of ceremony, medicine, and embodiment. Guided by Dr. Nathan Teismann and Tiffany Allen, you’ll move through a thoughtfully crafted journey designed to release old patterns, restore your nervous system, and awaken your soul’s natural clarity and wisdom.

Our day will include:

• Opening Meditation & Group Sharing Circle — grounding, intention-setting, and authentic heart connection

• Ketamine-Assisted Shamanic Journey — a deeply supported medicine experience guided by Dr. Teismann

• Group Sharing & Journaling Integration — space to express, reflect, and anchor your insights and breakthroughs

• Yin Yoga & Sound Healing — to soften, restore, and harmonize the body, mind, and spirit

This retreat is an invitation to start fresh — to enter 2026 feeling renewed, aligned, and deeply connected to your truth.

Small Group for Deep Experience
This circle is limited to 10 participants to ensure personal attention, safety, and sacred connection within the group field.

Offering: $1,444 per person

Please contact us to apply or learn more about this transformative experience.