In this article, we seek to understand the experiences of individuals affected by the suicide of a loved one—those left behind and confronted with a loss that will leave a lasting mark on their lives. In the first part, we reflect on how to refer to individuals affected by such a profound loss. We then focus on analyzing the ways in which the experiences of the bereaved are described — taking into account both the dominant forms of conceptualization found in the literature and the scale of this experience. In the final section of the text, we observe that scholarly literature often seeks regularities in the experiences of those left behind. However, we emphasize that these regularities serve merely as a starting point for understanding what is unique, singular — and, as a result, deeply personal, solitary, and indivisible. This article constitutes the first of two parts devoted to this topic. Its continuation is presented in the text titled “Those Left Behind Among the Left Behind – Between Life and Suicide of a Loved One”, published in this issue of the journal Psychotherapy.