"As in Mediterranean Christianity, these saints became so popular that they almost crowded out the head of the pantheon in worship and art. The veneration of relics, the use of holy water, candles, incense, the rosary, clerical vestments, a liturgical dead language, monks and nuns, monastic tonsure and celibacy, confession, fast days, the canonization of saints, purgatory and masses for the dead flourished in Buddhism as in medieval Christianity, and seem to have appeared in Buddhism first."
January 1, 1970
https://en.wikiquote.org/wiki/Purgatory