It should be the case of Imai Chaozong. Chao 'an is a word in geomantic omen, which refers to a place with good geomantic omen and can be understood as a place in Long Mai. This sentence means that it was built in a place with good feng shui.
The beauty of sand arch and the affection of water are also geomantic terms. It refers to building a place with beautiful scenery by the mountains and rivers;
The traditional feng shui acupoints in China are inferred according to four criteria: the truth of dragons, the nature of acupoints, the sand circle and the embrace of water. Flowing mountains may not have auspicious points of vitality, because the situation of mountain caves is different. Some are surrounded by sand and stones, which are closely related to each other, making them strong and auspicious. But some of them are flying sand and stones, which has nothing to do with it, so that their vitality is exhausted, and naturally they will not bear a good omen. Therefore, if we want to judge whether Xue Ji is suitable for burial, we must look at the sand water near the cave to see if it is surrounded by sand or if the sand flies away. Sand ring-sand refers to the mountains near the cave. There are mountains on the left and right sides in front of the cave, so that the gas condensed there will not be blown away by the wind. Water hug-water refers to streams, rivers and even oceans near cave sites. If there is a winding water flow in front of the cave site, or there is a water gathering place, the land can be condensed without splashing water. As the saying goes: scattered by the wind, stop at the boundary water. It means that anger can't gather when it meets water, so holding water in front of the cave is the first condition for gathering gas. Because holding water can gather the vitality of the cave, and the sand ring can keep the vitality of the cave from being blown away by the wind, both of which will be necessary conditions for auspicious caves.