I doubt that anyone goes through this life without some heartbreak. For some the ordinary experience of the broken hearts of life seems to close them up in bitterness, while for others it helps them to learn to be gentle with the hearts of others. I don't know what makes for the difference, but whether our own pain closes off our hearts or opens them up to the pain of others--to com-passion--is the distinction between lives that come to be configured to the Passion of Christ and lives that are thrown away in unhappiness and sin.
To me this is the mystery of the Sacred Heart. Christ crucified is the broken heart of God, but on the Cross the Sacred Heart is broken open so that the divine compassion flows out--the water and blood that becomes for us the saving and refreshing stream of Baptism and Eucharist.
To receive these mysteries gratefully is to learn to imitate them, and to let our own hearts break open into compassion.
Cor Jesu Sacratissimum, Miserere Nobis.