The painting is Christ in the Desert by Ivan Kramskoj – found at Wikipedia
Marcel Lejeune has put up a great post of Frequently Asked Questions about Lent over at Aggie Catholic. Click the link to read the whole thing.
Let me just preview a couple of the Q’s and A’s:
What is Lent? Lent is a time when the Catholic Church collectively enters into preparation for the celebration of Easter. Lent originally developed as a 40-day retreat, preparing converts to be baptized at the Easter Vigil. Lent is a season of conversion. Conversion is the process of turning away from sin and turning to God. Lent starts with Ash Wednesday (this excludes Sundays, which are not part of the 40 days) and ends on Holy Thursday, the first day of the Triduum, the three holy days before Easter.
So, why aren’t Sundays part of Lent? This is because Sundays are always a day of celebration of Christ’s Passion and Resurrection, so we celebrate on these days.
Does this mean I can “cheat” on Sundays? Since Sundays are not part of the penitential season, you do not have to practice signs of penitence on these days, But, there is no reason you can’t do them either. If you feel you are “cheating” then it isn’t helping!