The Epic Remains Incomplete

The text is ambiguous:
Rain slants, blown hard but still down,
Always coming down and down,
Even in a wind so strong
Leaves, detritus, whole branches,
Not to say cats and dogs, go
Down as slant-wise as the wet.

These are the facts as the words
Present them. The day was wet
And windy. But was the man
In the office sad to be
Upset by the world? His wife
Who had stopped by earlier

Thought so. Was that what rain meant?