What do you mean the house is in the meridian direction?
The ancients combined heavenly stems with five elements to indicate geographical location. The popular saying is: "East, fire in the south, gold in the west, water in the north and Wuji soil in the middle." The ancients also used land branches to express geographical orientation.
The architectural orientation of China should follow the laws of nature. The northeast region is cold, so it is necessary to make full use of the thermal axis, so the building orientation and the thermal axis orientation are auspicious, preferably south to west. The south is different, the average temperature is higher, it is best to avoid the scorching sun on the hot axis, and the south is the east.
In the Eight Diagrams of the Day After Tomorrow, the ancients located the numbers in different directions, and corresponded "Eight Roads, Middle Earth and other nine directions" with "Numbers 1-9" one by one. Only the north-south direction, that is, the meridian direction, has the greatest difference, with the least 1 in the north and the most 9/in the south.
Extended data:
The ancients combined the heavenly stems with the five elements to indicate the geographical location, and the arrangement of the earthly branches reflected the orderly change process of the nature of the five elements. One thing needs to be clarified: earthly branches are not numbers, and there is no overlapping and adding relationship between them in quantity. But because the arrangement order of earthly branches is fixed, they can be used as numbers.
The earthly branch records the changes of the temperature, humidity and wind force of the earth's climate, records the distribution law of the five gases produced by this change, and explains what kind of influence the five elements of the earth will have on the human body.
Baidu Encyclopedia-heavenly stems and earthly branches
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