The gospel for the Fourth Sunday of Ordinary Time is Matthew 5. 1-12, the Beatitudes. No matter how often we hear them (and it is important to hear them, not just scan the text with our eyes), the words fall into that unusual category of being both fulfilled yet still not quite fulfilled. We are blessed, but not eternally blessed. We have just enough of heaven now to long for what is to come.
Let us not forget that those who are poor in spirit can claim heaven now as well as hereafter; that the gentle have a right to the earth now as well as hereafter; and so on through the Beatitudes, no matter how often we fail to perceive what we have already been given.
The most challenging Beatitude of all is probably “Blessed are the pure in heart for they shall see God.” Purity of heart enables us to see as God sees, without the distortion of sin or pride. In that wonderful clarity we may hope to catch a glimpse, a reflection, of God himself, knowing that one day we shall see him as he is, perfect in beauty, the joy of all the living. That is why purity of heart is the great goal of monastic life, that for which all our observances are meant to prepare us, in the hope that one day we may enjoy the vision of God.