What is mass of the presanctified?

The Mass of the Presanctified is a traditional Catholic liturgy held on Good Friday, during which the Eucharist is not consecrated due to the solemn nature of the day. Instead, the priest distributes the Eucharist that was consecrated on Holy Thursday. The Mass of the Presanctified is typically celebrated in the late afternoon or evening, and is marked by a somber mood and the absence of the usual liturgical accoutrements such as candles, incense, and music. It is an opportunity for the faithful to reflect on the sacrifice of Jesus Christ on the cross, and to meditate on the themes of death, redemption, and salvation. The presanctified hosts are kept in a special container called a "pyx" which is brought out during the liturgy. The weight of the presanctified hosts used in the Mass of the Presanctified can vary depending on the size of the congregation and the number of hosts prepared by the priest.