Roman Catechism 17.2

Chapter 17 — Part II: The Sacraments — Confirmation

Section 2. Lest, therefore, this divine blessing may seem, through their fault, and to their most serious injury, to have been conferred on them in vain, the faithful are to be instructed both on Whitsunday, on which day it is principally administered, and also on such other days as pastors shall deem convenient. Their instructions should so treat the nature, power, and dignity of this Sacrament, that the faithful may understand not only that it is not to be neglected, hut that it is to be received with the greatest piety and devotion.