Q. 1. What is the purpose of the "Altar candlesticks?"
A. 1. The "Altar candlesticks" serve the purpose of lighting up that Altar during the celebration of the Holy Mass.
There are five parts to the Altar candlestick: the foot, the stem, the knob about the middle of the stem, the bowl to receive the drippings of wax, and the pricket, i.e. the sharp point that terminates the stem on which the candle is fixed. Instead of fixing the candle on the pricket, it is permissible to use a tube in which is put a small candle which is forced to the top of the tube by a spring placed within (Cong. Sac. Rit., 11 May, 1878).
The rubric of the missal prescribe two Altar candlesticks on the Altar, one at each side of the cross during the low Mass. These candlesticks and their candles must be placed on the altar, their place cannot be taken by two brackets attached to the superstructural steps of the altar, or affixed to the wall (Cong. Sac. Rit., 16 September, 1865). According to the "Caeremoniale Episcoporum" (I, xii, 11), there should be on the high altar six candlesticks and candles of various sizes, the highest of which should be near the cross. If all six be of the same size they may be placed on different elevations, so as to produce the same effect; a custom, however, has been introduced of having them at the same height and this is now permissible (Cong. Sac. Rit. 21 July, 1855).
On the other altars of the church there should be at least two candlesticks, but usually four are used; on the altar of the Blessed Sacrament, if the Blessed Sacrament is not kept on the high altar, there should regularly be six. The Roman Missal (Rubr. 20) says also that a third candlestick and candle should be placed at the epistle side, and that this extra candle should be lighted at low Masses from the consecration to the consumption of the Precious Blood.
The candlesticks may be made of any kind of metal or even of wood, gilded or silvered, but on Good Friday silvered ones may not be used (Caerem. Episc., II, xxv, 2). The candlesticks destined for the ornamentation of the altar are not to be used around the bier at funerals, or around the catafalque at the commemoration of the dead (Rit. Rom., VI, i, 6), during Mass or other functions, at least on solemn feasts, they cannot be covered with a cloth or veil (Cong. Sac. Rit., 12 September, 1857; 16 September, 1865).
Candelabra holding several candles cannot be used for the candlesticks prescribed by the Rubrics (Cong. Sac. Rit., 16 September, 1865).