Pope Benedict urged young people not to abandon their faith in God because of the "attacks of evil" within the Church.

"Carry intact the fire of your love in this Church every time that men have obscured her face," he said in a foreword to a new catechism edited specifically for young people.

The new Youth Catechism, also called YouCat, will be included in each pilgrim backpack for World Youth Day 2011 in Madrid.

In the foreword, the pope urged everyone to study the catechism "with passion and perseverance."