Marriage pyramid is a couple of two pyramids. The centres of both the pyramids arec onnected at the bottom by a copper strip. One pyramid is black & the other is white. The black pyramid is called Maa chamber & the white pyramid is called Fa chamber. Below both the pyramids are smaller flattened pyramids, but they are opposite in colour.Therefore black pyramid i.e.Maa chamber you will have a smaller white flattened pyramid & vice versa for the other white pyramidi.e. Fa chamber. Each flattened pyramid has a 9 square FaMaayantra on the top.