What position should be placed at the entrance of Xinshan B, a rural residence?

If the main entrance is not placed on the axis symmetry line of the house, the door should be opened in the following ways: First, it should be opened on the top of the mountain and running water. Second, the party is safe and convenient. Third, don't go downhill when going out, don't be empty (potholes). Comprehensive consideration of the three. In any case, the placement of the door is in line with the compass. If it is inconvenient to get in and out, it is an empty evil door.