Typological motifs are a prominent feature of Tolkien's legendarium, including the motif of marriage and romance. Marital relationships appear among the Ainur (both Valar and Maiar) and the Children of Ilúvatar (both Elves and Men): some happy, some tragic, and some in-between. Tolkien's stories of marriage and romance represent a kind of "wisdom tradition" with relevant applicability to modern society and modern relationships. Most notably, men are always the ones who "marry up" in Tolkien's world, demonstrating a profound respect for women and femininity in society.