There are two inner doors side by side, facing south. How to open the outer door?

According to folk geomantic omen, the gate of the outer courtyard wall should be opened in the southeast. There is an idiom "purple gas comes from the east", which means good luck. The southeast is sunny and there are dragons, which means that good luck comes from here. The southwest is a white tiger, which is almost a fluke. In general, the gate of the outer courtyard wall should not face the river or the straight road, both of which should be avoided.