It's the opposite journey from what I've usually done with films. I find it very easy to go from, say, a lit, pleasurable environment, like what you see outside there, to a very dark place. But the opposite journey, which is what this movie takes, is much more complicated.
“If out of all mankind one finds a single friend, he has found something more precious than any treasure, since there is nothing in the world so valuable that it can be compared to a real friend.”