His thoughts threatened to spiral to places he feared he could not control unless he brought them down to the familiar distraction of language. ‘Dàn. It looks like this.’ He drew the character in the air: 旦. ‘Up top is the radical for the sun – rì.’ He drew 日. ‘And under that, a line. And I’m just thinking about how it’s beautiful because it’s so simple. It’s the most direct use of pictography, see. Because dawn is just the sun coming up over the horizon.’