Help me close read these two stanzas pleaseeee!!!!

A man’s brains splattered on
A stretcher-bearer’s face;
His shook shoulders slipped their load,
But when they bent to look again
The drowning soul was sunk too deep
For human tenderness.

They left this dead with the older dead,
Stretched at the cross roads.
Burnt black by strange decay
Their sinister faces lie,
The lid over each eye,
The grass and coloured clay
More motion have than they,
Joined to the great sunk silences.