Where should the five elements transport matrix be placed?

the choice and placement of feng shui ornaments will vary from person to person according to feng shui. The five elements belong to the earth, and the Feng Shui transshipment ball should be placed in the north or south of the room, because the north belongs to the water and belongs to the wealth of the natives. The south belongs to fire, and the fire is born in the earth. If it is placed in the south, it is necessary to choose the natural wealth day belonging to the natives to place the Feng Shui transshipment ball according to the law of flying stars in the Nine Palace.