Today, Jesus is telling people about an experience very close to his life: «A man scatters seed upon the soil (…), the seed sprouts and grows (…). The soil produces of itself; first the blade, then the ear, then the full grain in the ear» (Mk 4:26-28). With these words Jesus is speaking of the kingdom of God, consisting «of sanctity and grace, Truth and Life, justice, love and peace» (Preface of the Solemnity of our Lord Christ the King), that He is bringing us. We must make this kingdom real. First, within each one of us; afterwards, for all our world.
In every Christian's, soul Jesus Christ has sown —by virtue of the Baptism— the grace, the sanctity, the Truth... It is necessary that these seeds sprout, grow and bear a multitude of good fruits, our deeds: deeds of service and charity, of kindness and generosity, of sacrifice to properly comply with our daily duty and to make happy those around us; deeds of constant prayer, of forgiveness and understanding, of effort to grow in virtue, of joy...
Thus, this Kingdom of God —that begins within each one of us— will extend to our family, to our people, to our society, to our world. Because, he who lives like that, «what does he do but preparing the path of God (...), so that the strength of grace fills him and the light of truth lights him up; so that his ways to God are always straight?» (Saint Gregory the Great).
The seed begins very small, «It is like a mustard seed which, when sown, is the smallest of all the seeds scattered upon the soil. But once sown, it grows up and becomes the largest of the plants in the garden» (Mk 4:31-32). But the force of God's will scatters it all over and makes it grow up with a surprising vigor. Jesus asks us today —as in the beginning of Christianity— to spread his kingdom throughout all the world.