Jiazi, Geng Yue, and Chen Chen were able to walk on the city wall that year.

Yes, this sentence is a traditional feng shui expression, which means "the seamount is right and dry." In the year of Guimao, Jiazi walked on the wall of Chen Geng. " This term is mainly used to judge the feng shui pattern and determine the appropriate position and direction of the building wall at a certain time.

The specific explanation is as follows:

1. "The seamount is facing": refers to the direction of the wall to the seamount, that is, the northeast. This is because seamounts are auspicious in geomantic omen and have the function of ward off evil spirits.

2. "Dry-dry" means that the selection of materials should take into account the two directions of dry-dry, that is, it should have both the characteristics of firmness and softness to ensure the stability and flexibility of the wall.

3. "Chen Geng Day of Jiazi Month in Guimao Year": at this time, it refers to Chen Geng Day of Jiazi Month in Guimao Year in the lunar calendar, that is, between 17 and 19 on April 22, 2003. This time is a more auspicious moment, suitable for building walls and other projects.

4. "Walking the wall" means building a wall.

To sum up, if you want to build a wall at the right time and direction, you can refer to this feng shui expression. However, it should be noted that the theory of Feng Shui is not scientific, and its effect and function have not been scientifically proved. Therefore, it is suggested that you should consider the actual situation and practicality in actual operation.