In the present article, we set out to conceptualize and reframe posttraumatic stress and dissociation from an existential perspective. We employ an Other(s)-focused lens for understanding trauma, which we define as an evaluation of a response to a painfully unpredictable Other who can be a person or event. In this way, we prepose that what is traumatizing is the person, or Being, in relation to an Other who traumatizes. Traumatic stress is a term which encapsulates a Being’s meaningful and chosen responses to an Other who traumatizes. Dissociation is a unique phenomenon in which a person attempts to escape the Other who traumatizes by forging a felt sense of space between the person and the trauma. Existential therapy, then, is a relationship with a new Other who embodies and highlights ways of being with the trauma which honor rather than escape the pain. Finally, we put forth a therapeutic way of being which is attuned to the uniqueness and agency of the individual taking up the trauma.