From the Pope’s General Audience, last June:
Consequently, we can learn much from St James: promptness in accepting the Lord’s call even when he asks us to leave the "boat" of our human securities, enthusiasm in following him on the paths that he indicates to us over and above any deceptive presumption of our own, readiness to witness to him with courage, if necessary to the point of making the supreme sacrifice of life.
Thus James the Greater stands before us as an eloquent example of generous adherence to Christ. He, who initially had requested, through his mother, to be seated with his brother next to the Master in his Kingdom, was precisely the first to drink the chalice of the passion and to share martyrdom with the Apostles.
And, in the end, summarizing everything, we can say that the journey, not only exterior but above all interior, from the mount of the Transfiguration to the mount of the Agony, symbolizes the entire pilgrimage of Christian life, among the persecutions of the world and the consolations of God, as the Second Vatican Council says. In following Jesus, like St James, we know that even in difficulties we are on the right path.