Pope Francis asks priests to go to "outskirts" where they are most needed

On Holy Thursday, Catholics worldwide celebrate the Chrism Mass. At St. Peter's Basilica, Pope Francis presided the Mass.

The day has an added significance for priests. During the Mass, they renew the vows they took the day of their ordination.

Because of this, the Pope celebrated with cardinals, bishops and hundreds of priests from the Diocese of Rome, in all about 1600 men.

He encouraged them to reach out to the poorest, and those that are sad or lonely.