Suzanne Segal

American writer and teacher about spiritual enlightenment, known for her sudden experience of self-realization which she wrote about in her book Collision With the Infinite: A Life Beyond the Personal Self.

In addition to gaining note in the spiritual community, Segal became a model case of the dissociative condition known as depersonalization disorder (DPD). Along her journey some therapists formally diagnosed her with DPD, while others did not have clear explanations.

In 1997, Segal's health began rapidly deteriorating, and she was diagnosed with a malignant brain tumor. She died two months later that year, leaving many questions about the root cause of her experience unanswered.