Because when you are not all absorbed in yourself, you can feel the sadness of the world. And therefore, what you actually have is that the joy of the Lord happens inside the sorrow. It doesn’t come after the sorrow. It doesn’t come after the uncontrollable weeping. The weeping drives you into the joy, it enhances the joy, and then the joy enables you to actually feel your grief without its sinking you. In other words, you are finally emotionally healthy.