Open your eyes...and see what you can with them before they close forever. - Anthony Doerr

And is it so hard to believe that souls might also travel those paths? That her father and Etienne and Madame Manec and the German boy named Werner Pfennig might harry the sky in flocks, like egrets, like terns, like starlings? That great shuttles of souls might fly about, faded but audible if you listen closely enough? They flow above the chimneys, ride the sidewalks, slip through your jacket and shirt and breastbone and lungs, and pass out through the other side, the air a library and the record of every life lived, every sentence spoken, every word transmitted still reverberating within it.

What mazes there are in this world. The branches of trees, the filigree of roots, the matrix of crystals, the streets her father recreated in his models... None more complicated than the human brain, Etienne would say, what may be the most complex object in existence; one wet kilogram within which spin universes.

The things that look fixed in the world, child — mountains, wealth, empires — their permanence is only an illusion. We believe they will last, but that is only because of the brevity of our own lives. From the perspective of God, cities like this come and go like anthills.