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Maria Teresa de los Ángeles is a nun in Cadiz, in the south of Spain,
and almost every day she prays to the architect, Antony Gaudí.
His unusual buildings are some of the most famous in Spain.
You might know him as the architect behind the Sagrada Familia.
the enormous basilica in Barcelona, which is still under construction after more than 140 years.
To some, he's known as God's architect.
And right now, a committee in the Vatican is deciding whether this architect will be made a saint.
Pope Francis, in one of his last official acts before he died, put Gaudí on the path to sainthood.
This is the documentary from the BBC World Service.
I'm Max Holbury.
And on this episode of Heart and Soul,
which explores approaches to spirituality from around the world,
I'm in Barcelona, in Spain's northern region of Catalonia.
I'm here to understand why Spain's most famous architect could very well become a saint.
I talk to him like he's a friend.
A friend in the sky.
A friend in heaven.
More than anything, that's my relationship with him.
A dialogue.