This reflection examines the Reformation thesis of justification by faith alone (sola fide), seeking to strip away historical and theological layers to reveal its broader philosophical significance. The author suggests viewing faith in a cosmological sense as the foundation of all life, rather than as mere credulity or vain reliance. At the core of the text is a critical inquiry into the concept of "justification" itself. It questions what this process truly entails and whether it depends on the positive consequences of an action or remains independent of the outcome. The reflection ponders whether actions leading to unfavorable results can be justified if performed in faith, and whether, in such cases, faith itself requires justification. The text thus opens a profound discussion on the relationship between inner conviction, the ethical correctness of action, and the unpredictability of external circumstances, problematizing the very nature of validating human conduct within the totality of being.