The formal, sacred union between a man and a woman, recognized by religious institutions, establishes a lifelong partnership oriented towards mutual love, support, and the procreation and education of children. It is considered, in many faiths, to be a divinely instituted covenant, a visible sign of an invisible grace, and a commitment undertaken before God and the community. For example, in the Catholic Church, it is considered one of the seven sacraments.
This enduring bond provides a stable foundation for families and societies. It fosters emotional and spiritual growth within the couple, offering a unique path to holiness and fulfillment. Historically, it has served as the bedrock of social order, providing a framework for inheritance, lineage, and the transmission of values across generations. Its emphasis on fidelity and commitment promotes trust and security within the relationship and the wider community.