The first day of Lent is always on a Wednesday, known as Ash Wednesday. It is called Ash Wednesday because during Mass, ashes are put on the forheads of those in the congregation in the sign of the cross while the minister says either, "Remember man that you are dust and unto dust you shall return," or "Repent and believe in the Gospel."
Lent is a time for penance; a time to
pray,
fast, and
give alms as a way of showing repentance for sins and of turning our hearts to God. In addition to abstaining from meat on Fridays, many choose to add another, more personal thing to give up during Lent. (If you want some good tips and ideas for fasting, try
here or
here.)
The color for Lent is purple. This is because it is a time to be more humble, subdued, and reflective. This is the time before Easter, the time when Jesus Christ is to undergo is suffering and death on account of our sins. This is a time to help us become less selfish, more disciplined, and completely focused on the incredible gift that comes with the resurrection on Easter.