How did August Strindberg's childhood influence The Son of a Servant?

In his autobiography The Son of a Servant (1886–87), August Strindberg draws directly from his early life to explore the origins of his personal development. He characterizes his childhood as being defined by emotional insecurity, poverty, and neglect.1

Furthermore, his upbringing was significantly shaped by his family dynamics and environment, specifically noting the influence of his grandmother’s religious fanaticism. By documenting these formative experiences, Strindberg provided a candid and often discreditable self-revelation that served as a major impulse for the genre of autobiographical writing.1