How can one of the happiest days in the Jewish calendar arrive just one week after Tisha B’Av?

This source-based Hagut Yosef essay explores the question: How can one of the happiest days in the Jewish calendar arrive just one week after Tisha B’Av? 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.