32 And now, brethren beloved, the word of instruction exhorts you all, to prepare your souls for the reception of the heavenly gifts. As regards the Holy and Apostolic Faith delivered to you to profess, we have spoken through the grace of the Lord as many Lectures, as was possible, in these past days of Lent; not that this is all we ought to have said, for many are the points omitted; and these perchance are thought out better by more excellent teachers. But now the holy day of the Passover is at hand, and you, beloved in Christ, are to be enlightened by the Laver of regeneration. You shall therefore again be taught what is requisite, if God so will; with how great devotion and order you must enter in when summoned, for what purpose each of the holy mysteries of Baptism is performed, and with what reverence and order you must go from Baptism to the Holy Altar of God, and enjoy its spiritual and heavenly mysteries; that your souls being previously enlightened by the word of doctrine, you may discover in each particular the greatness of the gifts bestowed on you by God.
Source: Catechetical Lectures (New Advent)