The subject contained in this Sunday’s Gospel is precisely the Kingdom of Heaven. “Heaven” should not be understood only in the sense of some height that is above us, because this infinite space also has the form of man’s interiority. Jesus compares the Kingdom of Heaven to a field of wheat, to make us understand that within us is sown something small and hidden, which, nevertheless, has an unrestrainable vital force. Despite all the obstacles, the seed will develop and the fruit will mature. This fruit will only be good if the terrain of life has been cultivated according to the divine will. Because of this, in the parable of the good seed and the weeds (Matthew 13:24-30,) Jesus warns us that, after the owner planted the seed, “while all were sleeping,” “his enemy” came and sowed weeds. This means that we must be ready to guard the grace received on the day of our baptism, continuing to nourish faith in the Lord, which prevents evil from taking root. Commenting on this parable, St. Augustine observed that “many at first are weeds and then become good seed” and he added: “if the former, when they were evil, were not endured with patience, they would not have attained the praiseworthy change” (Quaest. septend. in Ev. sec. Matth., 12, 4:PL 35, 1371).