The prophet Elijah was given food for a journey that God was asking him to make.  The angel of the Lord ordered him to “Get up and eat, else the journey will be too long for you!”  The Eucharist that we receive is the food for our journey too.  Unless we have full faith in the Eucharist as the real Body and Blood of the Lord, and receive worthily, we will not have the strength to do all that the Lord has asked us to do in order to complete our journey from life here on earth to eternal life.  In fact for a dying person the Church calls this Viaticum.  Viaticum is the Eucharist received by a dying person.  It is the spiritual food for one’s “passing over” to the Father from this world.  With the sacraments of Penance and the Anointing of the Sick, the reception of Holy Communion as Viaticum constitute the last sacraments of the Christian.  It is essential to call for the priest sooner rather than later when we suspect a loved one might die, so that they can receive these sacraments.