In this paper, we first delve into the desire for connection in Amae and Love of Passion by introducing Greek prototypes and focusing on the concept of love in Plato's Eros and the Christian Agape. We ethically reconsidered the relationship between Love and Amae. In this way, we can understand Amaeru as a complete, universal, and ascending love structure, and Amaesaseru as an incomplete, special, and descending love structure, thus understanding the mechanism of their unification and practical difficulties.