The author shows that the call to discipleship is above all an invitation to intimate companionship with Jesus, as we read in Mark: "Jesus called to him those whom he desired... in order that they might be with him" (3:14-15). What we normally call the "active apostolate" can never be an end in itself, but only the fruits of a life of prayer and adoration. These are what must be at the heart of a disciple's life, which can never be swept up by mere activism.