(Or VIGIL; Latin Vigilia; Greek pannychis).
In the first ages, during the night before every feast, a vigil was kept. In the evening the faithful assembled in the place or church where the feast was to be celebrated and prepared themselves by prayers, readings from Holy Writ (now the Offices of Vespers and Matins), and sometimes also by hearing a sermon. On such occasions, as on fast days in general, Mass also was celebrated in the evening, before the Vespers of the following day. Towards morning the people dispersed to the streets and houses near the church, to wait for the solemn services of the forenoon. This vigil was a regular institution of Christian life and was defended and highly recommended by St. Augustine and St. Jerome (see Pleithner, "Aeltere Geschichte des Breviergebetes", pp. 223 sq.). The morning intermission gave rise to grave abuses; the people caroused and danced in the streets and halls around the church (Durandus, "Rat. Div. off.", VI, 7). St. Jerome speaks of these improprieties (Epist. ad Ripuarium).
As the feasts multiplied, the number of vigils was greatly reduced. But the abuses could be stopped only by abolishing the vigils. And where they could not be abrogated at once and entirely they were to begin in the afternoon. A synod held at Rouen in 1231 prohibited all vigils except those before the patronal feast of a church (Hefele, "Conciliengeschichte", V, 1007). In place of nocturnal observances, the bishops introduced for the laity a fast on the day before the feast, which fast Durandus (loc. cit.) calls "jejunium dispensationis". Honorius of Auxerre, in 1152 (Gemma Animae, III, 6), and others explain in this way the origin of this fast. It existed, however, long before the abolition of the nocturnal meetings. The fast on Christmas Eve is mentioned by Theophilus of Alexandria (d. 412), that before the Epiphany by St. John Chrysostom (d. 407), that before Pentecost by the Sacramentary of St. Leo I. Pope Nicholas I (d. 867), in his answer to the Bulgarians, speaks of the fast on the eves of Christmas and of the Assumption. The Synod of Erfurt (932) connects a fast with every vigil. The very fact that the people were not permitted to eat or drink before the services of the vigil (Vespers and Matins) were ended, after midnight, explains the excesses of which the councils and writers speak.
The Synod of Seligenstadt (1022) mentions vigils on the eves of Christmas, Epiphany, the feast of the Apostles, the Assumption of Mary, St. Laurence, and All Saints, besides the fast of two weeks before the Nativity of St. John. After the eleventh century the fast, Office, and Mass of the nocturnal vigil were transferred to the day before the feast; and even now  the liturgy of the Holy Saturday (vigil of Easter) shows, in all its parts, that originally it was not kept on the morning of Saturday, but during Easter Night. The day before the feast was henceforth called vigil. A similar celebration before the high feast exists also in the Orthodox (Greek) Church, and is called pannychis or hagrypnia. In the Occident only the older feasts have vigils; even the feasts of the first class introduced after the thirteenth century (Corpus Christi, the Sacred Heart) have no vigils, except the Immaculate Conception, which Pope Leo XIII (30 Nov., 1879) singled out for this distinction. The number of vigils in the Roman Calendar besides Holy Saturday is seventeen, viz., the eves of Christmas, the Epiphany, the Ascension, Pentecost, the Immaculate Conception, the Assumption, the eight feasts of the Apostles, St. John the Baptist, St. Laurence, and All Saints. Some dioceses and religious orders have particular vigils, e.g. the Servites, on the Saturday next before the feast of the Seven Dolours of Our Lady; the Carmelites, on the eve of the feast of Mount Carmel. In the United States only four of theses vigils are fast days: the vigils of Christmas, Pentecost, the Assumption, and All Saints.
The vigils of Christmas, the Epiphany, and Pentecost are called vigiliae majores; they have a proper Office (semi-double), and the vigil of Christmas, from Lauds on, is kept as a double feast. The rest are vigiliae minorea, or communes, and have the ferial office. On the occasion of the reform of the Breviary, in 1568, a homily on the Gospel of the vigil was added, an innovation not accepted by the Cistercians. If a vigil falls on a Sunday, according to the present rubrics, it is kept on the preceding Saturday; during the Middle Ages in many churches it was joined to the Sunday Office. If it occurs on a double or a semi-double feats, it is limited to a commemoration in the Lauds and Mass (a feast of the first class excludes this commemoration), the ninth lesson in the Breviary, and the last Gospel in Mass. If it occurs on a day within an ordinary octave, the Mass is said of the vigil, the Office of the octave; if it occurs on a feria major, the vigil is omitted in the Breviary and commemorated only in the Mass, if the feria has a proper mass; if not (e.g. in Advent), the mass is said of the vigil, the feria is commemorated. In the Ambrosian Liturgy of Milan only the vigils of Christmas and Pentecost are kept, at least by a special Mass; the other vigils exist only in the Calendar, but are not kept in the liturgy. In the Mozarabic Rite only Christmas has a vigil; three days before Epiphany and four days before Pentecost a fast is observed; the other vigils are unknown.
BINTERIM, Die Denkwurdigkeiten der christ-katholischen Kirche (Mainz, 1829); SCHOED in Kirchenlexicon, s.v. VIGIL; Rubricae generales Breviarii Romani, tit. 6; Rubricae generales Missalis Rom., tit. 3; PLEITHNER, Aelteste Geschichte des Breviergebets (Kempten, 1887), #284, 360.
APA citation. (1909). Eve of a Feast. In The Catholic Encyclopedia. New York: Robert Appleton Company. http://www.newadvent.org/cathen/05647a.htm
MLA citation. "Eve of a Feast." The Catholic Encyclopedia. Vol. 5. New York: Robert Appleton Company, 1909. <http://www.newadvent.org/cathen/05647a.htm>.
Transcription. This article was transcribed for New Advent by Barbara Jane Barrett.
Ecclesiastical approbation. Nihil Obstat. May 1, 1909. Remy Lafort, Censor. Imprimatur. +John M. Farley, Archbishop of New York.
Contact information. The editor of New Advent is Kevin Knight. My email address is feedback732 at newadvent.org. (To help fight spam, this address might change occasionally.) Regrettably, I can't reply to every letter, but I greatly appreciate your feedback — especially notifications about typographical errors and inappropriate ads.