Sacramental preparation, and therefore sacramental fruitfulness, isn't just a concern for people who want to receive the Sacraments of Initiation, and those who are instructing them. It's a concern for all Catholics, every time we receive the Sacrament of the Eucharist. Just as repentance and conversion are necessary for baptism to be fruitful, so is the disposition to be sanctified according to God's will, not our own, necessary for the Eucharist to be fruitful. To the extent I recoil from embracing the Cross in my life, I recoil from receiving the Eucharist with a right disposition, and I make the work of Christ and His Church useless in my life.
Sacramental Preparation: It Isn't Just for First Communion!