In Andréi Tarkovsky’s masterpiece, Nostalghia, there is a long candlelit scene. A man protects the flickering flame with his hand. Towards the end of the film, the hero, haunted by an apocalyptic vision and in order to save the world, must cross an abandoned pond with a votive candle which must not go out. Filming someone’s portrait, that’s what it is all about! Getting up close to a face and capturing its fire.