God’s love is the source of all our love, and he is the one taking the initiative in the lovestory between him and us. For this reason, the heart of Christ is the starting point of the dynamics of love. Christ is the incarnation of the Godhead, which means that he is the embodiment of God, who is love. Because he is Love incarnated, he is the standard by which all love is measured. Since love has its seat in the heart, Christ’s heart is the symbol of this love.
It is an important property of this love that it makes the lover shift his gaze from himself to the beloved. As a consequence, none has greater love than he who gives his life for his friends. It follows from this that the love of God is most profoundly revealed in Christ crucified, and to Francis de Sales he is the best teacher of the dynamics of love: «Mount Calvary is the true school of love.»
- Taken from the writings of Susanne A. Kjekshus Koch,”SAINT FRANCIS DE SALES AND THE THEOLOGY OF HEARTS: The Dynamics of Love” (link)