Pope Francis presiding over a Jubilee Mass for Teens in St Peter's Square on Sunday told them "the true friends of Jesus stand out essentially by the genuine love that shines forth in their way of life." He also told the 13 to 16 year olds that although love is the path to happiness, it is not an easy one and requires effort. He also said, happiness has no price.  "It cannot be bought: it is not an app that you can download on your phones nor will the latest update bring you freedom and grandeur in love."