Where is the line between genuine change and promises to ourselves that do not last?

This source-based Hagut Yosef essay explores the question: Where is the line between genuine change and promises to ourselves that do not last? The canonical Hebrew article develops the theme through Torah sources and reflection on human life. This localized discovery layer preserves the source’s meaning and identity and does not add new halakhic, historical, psychological, medical, legal, political, scientific, or empirical claims beyond the Hebrew source.