The first line:
A cushion of white grass.
No fault.
The second line:
A withered trunk bursts with fresh vetch.
An old man takes a wife. Nothing but gain.
The third line:
A weak beam.
Misfortune.
The fourth line:
An ample beam. Fortunate,
unless there has been stinting.
The fifth line:
Withered wood blooms with flowers.
An old woman takes a husband.
Neither fault nor praise.