Gerhard Cardinal Müller is prefect of the Congregation for the Doctrine of the Faith at the Vatican. Plough had the opportunity to interview him while he was visiting the United States along with Pope Francis in September 2015.

Plough: What do you see as the most urgent challenge facing Christians today?

Müller: All Christians, churches, and denominations are confronted with a big wave of secularization, an understanding of the life of human beings without God and linked only with this world. But this is a finite world, and the deep questions we have – the existential questions of where we are coming from, where we are going to, and what the sense of our life is – will find an answer only in the light of Jesus Christ and God, the creator of the world.