The events of yesterday in Boston called to mind some words of Auden’s, and thoughts, prayers, and hopes for safety.
The last stanza of Auden’s September 1, 1939

Defenceless under the night
Our world in stupor lies;
Yet, dotted everywhere,
Ironic points of light
Flash out wherever the Just
Exchange their messages:
May I, composed like them
Of Eros and of dust,
Beleaguered by the same
Negation and despair,
Show an affirming flame.