At the beginning of the dream, it is mentioned that the background is the second day of the Lunar New Year, and the scene is spent at your grandmother's house. Then you and your husband did a shameful thing, and then a strange and familiar girl came in. I guess this dream of yours has something to do with something at home. This girl may be the Guanyin statue enshrined in your family. Because you not only dream of having sex with your husband, but also dream of having sex with other men. From this point of view, the Guanyin worshiped by your family does not belong to your family. This girl should be the incarnation of Guanyin Bodhisattva. In addition, the Guanyin statue you worship is placed in a Buddhist shrine. The reason why you dream about your grandmother's house should be the reason of the niche, because the niche looks like a house on the surface. Making love with your husband and other men is red cloth or fairy cards, because red things are evil. If your family can't provide immortals, you will have similar dreams. All the above are speculations and are for reference only.