125 We wish first to give the sick, the infirm, and the aged that comfort which comes from heaven. They should remember that we have here no permanent city, but must seek for the city that is to come. (61) They should recall that the sufferings of this life serve to purify the soul; they elevate and ennoble us and can win us eternal joy in heaven. Our Divine Redeemer bore the yoke of the cross to wash away the stains of our sins; to this end He endured abuse, torture, and agonizing pain, all by His free choice. Like Christ, we are all called to light, by way of the cross, for He has told us: "If anyone wishes to come after me, let him deny himself, and take up his cross daily, and follow me," (62) and he shall have a treasure unfailing in heaven. (63)
Source: Ad Petri Cathedram (Vatican.va)