The fruit of love will always be a union of persons, of mind and heart.
In the language of heaven, it becomes a union of being. Such is the perfection of the Most Holy Trinity. And if love of that kind exists, it is possible for us to live in total love as well.
Love also results in individuality. The more we give of ourselves to others in love, the more we find out who we are as persons. The Father is not the Son; the Son is not the Holy Spirit. But love enables the Father to be a loving Father, a Lord of tenderness. The Son on the other hand grants eternal life to those who believe in him, he does not condemn; he saves.
And the Holy Spirit? He plants himself into our hearts, causing us to live in happiness, to help one another, and to live in God's love and in peace.
Love enables us to mirror God's perfect love. As in the second reading, live in love. Live in God. Whatever we do should always be, and absolutely be, a reflection of the perfect love of the Father, the Son, and the Holy Spirit.