56 The Catholic Church has always displayed and still displays this latria that ought to be paid to the Sacrament of the Eucharist, both during Mass and outside of it, by taking the greatest possible care of consecrated Hosts, by exposing them to the solemn veneration of the faithful, and by carrying them about in processions to the joy of great numbers of the people.
Source: Mysterium Fidei (Vatican.va)