If you have children, it may be caused by too much tension. If there are no children, there may be some minor twists and turns in life, such as seeing unfortunate things affected. Thinking more about happy things or beautiful things will guide the dreams at night. You can usually think about it, say it, and do it well.
In short, dreaming about bad things may not happen in life, so don't care too much.
Sometimes I often dream that explanation is the kind of dream that can make a fortune, but I have never made a fortune, and my life is still normal. I don't have to believe in dreams too much and do what I should do.