"There is a pool in front of the house, so don't make five kings." "There is a pond behind the house, and Erxing is busy in the mountains." This is also the conclusion in the Feng Shui book. So anything beneficial will be harmful and interests will coexist. This is the Book of Changes. Let's just say that this pond can bring advantages to aquaculture. There is a pond, and the water plants around the pond are more lush than other places, but it is also true that the pond is unsafe.