XXVIII

We are told in CCC 1377 that Christ is present whole and entire in each of the species and whole and entire in each of their parts, in such a way that the breaking of the bread does not divide Christ.”  It is not easy to grasp how this takes place but we can understand with different similes.

Some time ago, a preacher who knew how to make religious truths come to life was faced by a hostile crowd. One of them demanded, "How is it possible for bread and wine to become the Body and Blood of Christ?" The preacher looked calmly at the stout questioner for a moment and answered, "You have grown somewhat since you were a child and have more flesh and blood than you had then. Surely, if a human body can change food and drink into flesh and blood, God can do it too." "But how," countered the heckler, "is it possible for Christ to be present in his entirety in a small host?" The preacher glanced up at the sky and down at the street before them and answered, "This city scene and the sky above it is something immense, while your eye is very small. Yet your eye in itself contains the whole picture. When you consider this, it won't seem impossible for Christ to be present in his entirety in a little piece of bread." Once more the heckler attacked. "How, then, is it possible for the same Body of Christ to be present in all your Churches at the same time?" The preacher answered: "In a large mirror you see your image reflected but once. When you break the mirror into a thousand pieces, you see the same image of yourself in each of the thousand fragments. If such things occur in everyday life, why should it be impossible for the Body of Christ to be present in many places at once?

Another example could be, when a speaker speaks to a congregation each member listens to all of what the speaker speaks. Each listener listens to all of what he says in its entirety. The speaker had to speak only once. Or say, when a person comes on TV he is seen on all the TVs all over the world tuned to the channel. The person present in one place is present in all the TVs is an example how one glorified Jesus is present in all the pieces of the Eucharist in his entirety.

XXVII

Not only one hour fasting and interior disposition would suffice, but exterior reverence is also important to the Eucharistic Presence.

“The Eucharistic presence of Christ begins at the moment of the consecration and endures as long as the Eucharistic species subsist. Christ is present whole and entire in each of the species and whole and entire in each of their parts, in such a way that the breaking of the bread does not divide Christ.” (CCC 1377; cf. Council of Trent, Session XIII, Canon III)

From this doctrine, we know that our Savior is present, whole and entire (body, blood, soul, and divinity), in the whole Host. Further, we know that the whole Christ is present in each part of the Host. Hence, it is clear that the whole Christ is real and truly and substantially present in even a small particle of a Host or in a small drop of the Precious Blood.

And, we further maintain, no part of the Host is a mere part of Christ, but each part of each Host is the whole Christ present in his entirety.

Hence, if a Catholic believes in the Eucharist – that Jesus is truly present in the Host – then he is already acknowledging that a relatively small piece of what-looks-like-bread is, in fact, Jesus. Now, if a regular Host can become the whole Jesus, why would we doubt that a small Host can be the whole Jesus?

Therefore, those who are not careful with the Eucharistic particles, or who outright deny that Jesus is present in even small pieces of the Host, either do not believe in the Eucharist at all or are very foolish (since their own reasoning is self-contradictory).

A piece of the Host which is visible to the human eye (under usual conditions and without assistance) as what appears to be a piece of bread, is surely Jesus. However, those particles which are so small as to be invisible to the human eye, or to be indistinguishable from a particle of dust – these cannot any longer be the Eucharist. They do not have the bread quality in them.

The Church teaches that the Eucharistic Presence remains “as long as the Eucharist species subsist”. This means that Jesus is truly present in the Eucharist, so long as the Eucharist retains the accidental properties of bread and wine. Hence, if a Host is dissolved in water (as is done when the Host has become putrefied, as through vomiting after the reception of Communion), upon being dissolved it is not longer the Eucharist. Likewise, the Precious Blood, when the Chalice is purified with water is no longer the Eucharist.

In order to teach his disciples that the Eucharist is truly his own Flesh and Blood, he first instructed them to gather up the “fragments” which were left over from the multiplied loaves – if such care was taken for the mere symbol of the Eucharist, how much more must we care for the Real Presence!

Even in those cases where the particle is so small as to cause some doubt as to whether or not it is the Eucharist, the priest and the people ought to exercise extreme caution. This is one reason why communion in the hand was not permitted in the Church for so many centuries. If the minister of the body can feel any particle between the fingers, there is a bowl with water kept on the credence table to dip and clean your fingers before you leave the sanctuary. 

XXVI

The discipline of fasting before communion has a long history, as Pope Pius XII states in his 1953 apostolic constitution, "Christus Dominus":

"From the very earliest time the custom was observed of administering the Eucharist to the faithful who were fasting.

Abstinence from food and drink is in accord with that supreme reverence we owe to the supreme majesty of Jesus Christ when we are going to receive Him hidden under the veils of the Eucharist. And moreover, when we receive His precious Body and Blood before we take any food, we show clearly that this is the first and loftiest nourishment by which our soul is fed and its holiness increased. Hence St. Augustine gives this warning: 'It has pleased the Holy Ghost that, to honor so great a Sacrament, the Lord's Body should enter the mouth of the Christian before other food.'

Before the time of Pius XII the Eucharistic fast was from midnight onward and included water. This also meant that Masses were only celebrated in the morning.

Pius XII mentions some of the difficulties preventing many from receiving Communion. Among them are the shortage of clergy, especially in mission lands, and the pace of modern life in factories and offices which include night shifts. He also desired to open up the possibility of celebrating Mass in the evening on important feasts so that more people could attend.

Thus, among other things he established that water and medicine would no longer break the fast. He also mitigated the fast under certain circumstances. In 1957, with the document "Sacram Communionem," he changed the law again, to require only a three-hour fast.

Pope Paul VI brought in the present discipline in November 1964, and this forms the basis of Canon No. 919.

Canon 919
1. One who is to receive the Most Holy Eucharist is to abstain from any food or drink, with the exception only of water and medicine, for at least the period of one hour before Holy Communion.
2. A priest who celebrates the Most Holy Eucharist two or three times on the same day may take something before the second or third celebration even if the period of one hour does not intervene.
3. Those who are advanced in age or who suffer from any infirmity, as well as those who take care of them, can receive the Most Holy Eucharist even if they have taken something during the previous hour.

How many times per day can one receive Holy Communion?

One of the significant changes for the faithful in the Code of Canon Law which was promulgated in 1983 was the permission to receive Holy Communion more than once per day. In the past the law set certain conditions, such as participation in a funeral, marriage or ordination Mass. The new canon, however, simply states,

c.917 A person who has received the Most Holy Eucharist may receive it again on the same day only during the celebration of the Eucharist in which the person participates. 

920 §1. "After being initiated into the Most Holy Eucharist, each of the faithful is obliged to receive holy communion at least once a year."

920 §2. "This precept must be fulfilled during the Easter season unless it is fulfilled for a just cause at another time during the year."

In the past, people spent a lot of time in mortal sin, or at least in a state unworthy to receive the Eucharist. Therefore for someone to receive it was a major life event. This kind of culture was undone by Pope St. Pius X at the turn of the 20th Century.

(One probable reason why the Church prescribed the law to receive communion at least once a year may have been that due to long fast the faithful may have been unprepared for receiving communion most of the days of the year.)

Frequent Communion increases our love for God and for our neighbor, which expresses itself in action, which makes us more like Christ.

Venial sins are forgiven when we receive the holy communion with proper repentance.

Physically, frequent Communion relieves us of our passions. Priests and other spiritual directors who counsel those who are struggling with passions, especially sexual sins, often urge frequent reception not only of the Sacrament of Confession but of the Sacrament of Holy Communion. By receiving Christ's Body and Blood, our own bodies are sanctified, and we grow in our likeness to Christ. In fact, as Fr. John Hardon points out in his Modern Catholic Dictionary, the Church teaches that "A final effect of Communion is to remove the personal guilt of venial sins, and the temporal punishment [earthly and purgatorial] due to forgiven sins, whether venial or mortal."