How does feng shui say that the tomb faces southwest? Good or bad?

Sitting and knowing that you are facing west belongs to the symplectic direction of Yishan in Feng Shui (this is a common sitting direction of Yin House, and there are other similar sitting directions such as Jiashan Gengxu and Maoshan Youyou). Because Feng Shui is a big category, Feng Shui pays attention to dragons, sand, caves, water and orientation, and orientation is only one of them, and it is the last one, so we can't judge whether it is good or bad just by sitting. If you want to judge whether it is good or bad, you need to see it yourself.