Can I put obsidian in the northwest corner of the building?

China people attach great importance to the right and left alignment of houses, and both front and back are indispensable. In geomantic omen, there is a dragon on the left, a white tiger on the right, Suzaku in front and Xuanwu behind. If a corner of the house is missing, it will not only affect wealth, but also affect the family, because the East represents long people or men aged 30 to 45; South represents two girls or 15 to 30-year-old girls; The west is a girl, or represents a girl below 15; In the north is a middle-aged man, representing boys aged 15 to 30. If the east is missing, men aged 30 to 45 will often miss home; Southern China, 15 to 30-year-old girls are prone to gynecological diseases; The lack of the western region makes it easy for girls under 15 to run away from home or have no intention to study; Male with 15 to 30 in the north has a bad relationship with his parents. When a corner is missing in the southeast, northwest and northwest of the house, Xiong thinks that a piece of "Obsidian Four Beasts Stone" can be placed in the missing corner of geomantic omen to remedy it.