GR translation: noise and change

[Mike Jing]

V102.30-38, P104.28-36   Gottfried styles himself a passive observer.
He has waited for his present age, and the conscription notice, to
catch him, with an impudent terror like watching the inrush of a curve
you mean to take for the first time in a controlled skid, take me,
gathering speed till the last possible moment, take me his
good-nights’ one prayer. The danger he thinks he needs is still
fictional for him: in what he flirts and teases with, death is not a
real outcome, the hero always walks out of the heart of the explosion,
sooty-faced but grinning—the blast is noise and change, and diving for
cover.

What's the meaning of "change" in "noise and change"?
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