A book that encourages taking the plunge into solitude, at least "temporarily." It illustrates how retreat and tranquility, when utilized as phases of maturity, can foster a person's inner growth. Written by two authors, the texts reveal the complexity of the subject. One in three people is alone—this fact serves as the starting point for reflections and insights that draw inspiration from both psychology and literature. The life experience of the now-deceased author Ulrich Beer, along with the fresh perspective of the young author Malte Güth, enriches the narrative. Thus, the book serves as both an engaging read and a guide to being alone, incorporating insights from modern psychological and interdisciplinary research, presented in a compact and understandable manner.