It means that your family will have a bumper harvest. For farmers, this is only a very favorable omen, so dragonflies are not a sign of bad luck. However, the specific analysis of specific problems depends on its long appearance and its color change. If it is a big dragonfly, it means that the fortune may not be particularly good recently.
If the color of the flying dragonfly is very bright and colorful, and its size is relatively large, it means that there will be no good luck, and some major events may happen. These things may be bad or good, you just need to be mentally prepared.