Sean O'Sullivan and Donna Rosenthal were  involved for many years in the efforts to legalize the Santo Daime religion in Canada. They bring us their extensive experience using "Daime" or ayahuasca in group ceremonies.

Donna graduated with a B.A. in Sociology from the University of Toronto in 1967 and completed 3 yrs. of graduate studies in Sociology and Religion at McMaster University in Hamilton, Ontario.

Donna worked for 15 yrs. at the Chedoke-McMaster Child & Family Centre with multi-generational, multi-problem families.

She was certified by Stan & Christina Grof in Holotropic Breathwork and has led Holotropic Breathwork Workshops for 15 yrs. She teaches courses in Mindfulness Based Stress Reduction.

For many years, Sean and Donna were  involved in the efforts to legalize the Santo Daime religion in Canada. Sean has a keen understanding of the Santo Daime psychoactive sacrament called “Daime” (also known as ayahuasca).

Sean was born in Dublin, Ireland and graduated from medical school in 1968.  During medical school, he did a two year training with the Irish Psychoanalytic Society.  He began a family medicine practice with a strong focus on psychotherapy in 1970.

Sean was certified by Stan and Christina Grof in Holotropic Breathwork in 1987.  He has taught courses in Mindfulness Based Stress reduction.  

Sean worked with Dr. Bruce Tobin and his team to move Psilocybin towards legal status in Canada, focusing initially on patients in End Of Life Distress (EODS).