The Church's Year-Ash Wednesday

Why is this day thus named?

Because on this day the Church blesses ashes, and places them on the heads of her faithful children, saying: "Remember man, thou art dust, and unto dust thou shaft return."

Why is this done?

St. Charles Borromeo gives us the following reasons for this practice: that the faithful may be moved to sincere humility of heart; that the heavenly blessing may descend upon them, by which they, being really penitent, will weep with their whole soul for their sins, remembering how earth was cursed because of sin, and that we have all to return to dust; that strength to do true penance may be given the body, and that our soul may be endowed with divine grace to persevere in penance.

With such thoughts let the ashes be put upon your head, while you ask in all humility and with a contrite heart, for God’s mercy and grace.

Is the practice of putting ashes upon our heads pleasing to God?

It is, for God Himself commanded the Israelites to put ashes on their heads for a sign of repentance. (Jer. XXV. 34.) Thus did David (Ps, CI. 10.) who even strewed ashes on his bread; the Ninivites, (Jonas III. 5.) Judith, (Jud, IX. 1.) Mardochai, (Esth. IV 1.) Job, (JobXLII. 6.) etc. The Christians of the earliest times followed this practice as often as they did public penance for their sins.

Why from this day until the end of Lent are the altars draped in violet?

Because, as has been already said, the holy season of Lent is a time of sorrow and penance for sin, and the Church desires externally to demonstrate by the violet with which she drapes the altar, by the violet vestments worn by the priests, and by the cessation of the organ and festive singing, that we in quiet mourning are bewailing our sins; and to still further impress the spirit of penance upon us, there is usually only a simple crucifix or a picture of Christ's passion, left visible upon the altar, and devoutly meditating upon it, the heart is mostly prepared for contrition.

Source: The Church's Year by Rev. Leonard Goffine