The practice is rooted in the cultural context of inheritance and social dynamics. In surrogate marriage, the emphasis is not on sexual relationships between the women involved but rather on the role of the bride as a child-bearer for the female-husband's lineage.
The custom is grounded in the cultural backdrop of succession and social relationships. In surrogate marriage, the focus shifts away from romantic connections between the women involved to the bride's function as a child-rearing agent for the female-spouse's lineage.