Consecration also entails going on missions, the Pope said, as Jesus told God, "As you sent me into the world, so I sent them into the world."
"The consecrated person exists for others, is given to others," and no longer lives for oneself, the Pope said.
"For the disciples it will be to continue Jesus' mission, to be given to God in order to be in mission for everyone," said the Pope.
The Pope prayed that all Christians follow suit and "open our own prayers to the needs of our neighbors and the whole world."
Jesus also prayed that his disciples "may all be one," as the Pope recalled the closing of the Week of Prayer for Christian Unity, which ended Jan. 25.
The Pope asked that everyone pray "for the gift of the visible unity of all Christ's followers, so that the world may believe in the Son and in the father who sent him."
While the desire for Christian unity lies in the hearts of all the faithful, that unity also "must appear clearly in history so that the world may believe -- an aim (that is) very hands-on and concrete," he said.