Pope Benedict XVI's 2009 Lenten Message:
"Through fasting and praying, we allow Him to come and satisfy the deepest hunger that we experience in the depths of our being: the hunger and thirst for God."
Read the official message for Lent from His Holiness, Benedict XVI, here.
Catholic Culture reminds us of the nature and significance of Ash Wednesday:
The time has now come in the Church year for the solemn observance of the great central act of history, the redemption of the human race by our Lord and Savior Jesus Christ. In the Roman Rite, the beginning of the forty days of penance is marked with the austere symbol of ashes which is used in today's liturgy. The use of ashes is a survival from an ancient rite according to which converted sinners submitted themselves to canonical penance. The Alleluia and the Gloria are suppressed until Easter.
Abstinence from eating meat is to be observed on all Fridays during Lent. This applies to all persons 14 and older. The law of fasting on Ash Wednesday and Good Friday applies to all Catholics from age 18 through age 59.
At the beginning of Lent, on Ash Wednesday, ashes is blessed during Mass, after the homily. The blessed ashes is then "imposed" on the faithful as a sign of conversion, penance, fasting and human mortality. The ashes is blessed at least during the first Mass of the day, but they may also be imposed during all the Masses of the day, after the homily, and even outside the time of Mass to meet the needs of the faithful. Priests or deacons normally impart this sacramental, but instituted acolytes, other extraordinary ministers or designated lay people may be delegated to impart ashes, if the bishop judges that this is necessary. The ashes is made from the palms used at the previous Passion Sunday ceremonies. — Ceremonies of the Liturgical Year, Msgr. Peter J. Elliott
The act of putting on ashes symbolizes fragility and mortality, and the need to be redeemed by the mercy of God. Far from being a merely external act, the Church has retained the use of ashes to symbolize that attitude of internal penance to which all the baptized are called during Lent. — Directory on Popular Piety and the Liturgy
From the very early times the commemoration of the approach of Christ's passion and death was observed by a period of self-denial. St. Athanasius in the year 339 enjoined upon the people of Alexandria the 40 days' fast he saw practiced in Rome and elsewhere, "to the end that while all the world is fasting, we who are in Egypt should not become a laughing stock as the only people who do not fast but take our pleasure in those days." On Ash Wednesday in the early days, the Pope went barefoot to St. Sabina's in Rome "to begin with holy fasts the exercises of Christian warfare, that as we do battle with the spirits of evil, we may be protected by the help of self-denial." — Daily Missal of the Mystical Body