Yesterday was the feast of St. Christopher (or in Spanish Cristobal) Magallanes and Companions, martyrs during the terrible persecution of the Church in Mexico during the 1920's. The Mass readings of the day fit perfectly into their feast because in the last verse of the Gospel (John 16: 29-33) Jesus proclaimed: "In the world you will have trouble, but take courage, I have conquered the world."
Why will we have trouble in the world? Because the upstart prince of this world is Satan who is engaged in a war against Christ and his followers, indeed against the human race whom he hates. St. Ignatius called Satan "the enemy of our human nature." He has sought to destroy individuals and our race from the beginning. Thus it is to be expected that in the world we "will have trouble."
But Jesus tells us to "take courage." I always like to point out that the root of that word "courage" is "cor" or "heart." Jesus tells us to take heart, to take his Sacred Heart. We take and receive his Heart in the Eucharist where he comes to us Body and Blood, soul and divinity, including his Heart. His Heart transforms our hearts so that no matter what happens to us we can be strong in the knowledge of God's love.