Why do the Christians celebrate lent?
The observance of Lent, making personal sacrifices, can be a good spiritual practice, yet also has degenerated, with some to such things as Mardi Gras, into a mockery of good, by doing wicked things prior to the season of Lent. The thought of some is that we should always seek to do good, all year around. A conscientious person may find spiritual value in the practice.