ABSTRACT
Natural science has accomplished today's development by shifting from "why" to "how." Although the clinical practice of psychiatry is full of these "why" questions, the mental attitude to support answering them cannot be found in its etiology. The psychogenic cause is ostensibly responsible for addressing "why" questions, but it tends to be handled in the context of "how," so "why" is once again excluded. The conceptual utility of endogenous, exogenous, and psychogenic causes does not need to be questioned. Clinicians, however, must be aware of the cause of existence in order to avoid ignoring the "why" questions that lurk and swirl in the abyss, and thus to be of help to those searching for their individuality. When the thirst for the cause of existence remains unquenched, some people step into fortune-telling, or even shady cults.
