If there were no prayers, hymns and readings then there would be a failure to follow the liturgical book “Holy Communion and the Worship of the Eucharist Outside of Mass”:
“95. During the exposition there should be prayers, songs, and readings to direct the attention of the faithful to the worship of Christ the Lord.
To encourage a prayerful spirit, there should be readings from scripture with a homily or brief exhortations to develop a better understanding of the eucharistic mystery. It is also desirable for the people to respond to the word of God by singing and to spend some periods of time in religious silence.”
From the book n. 91:
“In the absence of a priest or deacon or if they are lawfully impeded the following persons may publicly expose and later repose the holy eucharist for the adoration of the faithful:
a) an acolyte or special minister of communion;
b) a member of a religious community or of a lay association of men or women which is devoted to eucharistic adoration, upon appointment by the local Ordinary.”
Today we would use the term “Extraordinary Minister of Holy Communion” instead of “special minister of communion”. The term “acolyte” refers to an instituted acolyte. Only men can become instituted acolytes. They are given a lifetime appointment as Extraordinary Ministers of Holy Communion (unless they are later ordained as deacons).
Bernoulli wrote “A solemn adoration, with servers, incense etc., can only be celebrated by a priest or a deacon. Other people with the privilege can celebrate a simple adoration.” I disagree with this.
From the book:
“85. For exposition of the blessed sacrament in the monstrance, four to six candles are lighted, as at Mass, and incense is used.”
It does not have “and incense is used if the minister is ordained, but not if the minister is a lay person”.
From the book:
“93. After the people have assembled, a song may be sung while the minister comes to the altar. If the holy eucharist is not reserved at the altar where the exposition is to take place, the minister puts on a humeral veil and brings the sacrament from the place of reservation; he is accompanied by servers or by the faithful with lighted candles.”
It is clear from the term “minister” that this person need not be a Priest or Deacon. There is nothing to suggest that the servers are only to be used if the minister is a Priest or Deacon.
It describes the distinctions between the ceremonies with a lay minister and an ordained one in n. 91 and 92. The main one is for a lay minister: “It is not lawful, however, for them to give the blessing with the sacrament.” The other difference is the vestments worn.
[Excerpts from the English translation of Holy Communion and the Worship of the Eucharist Outside of Mass, © 1974, International Commission on English in the Liturgy Corporation. All rights reserved.]