Poem Analysis Tears idle Tears

Fisrt stanza: The speaker cries because he is remembering the past.
Second stanza: The speaker while he looks at the extense fields he stills remembers the past.
Third stanza: The speaker mentions he's inside a house while he hears the "half-aweakened birds" where we can infer its the morning sings of the birds.
Fourth stanza: He remembers that special person he used to loved, which is probably dead.

The title tears idle tears already give us the sadness connotation, but with a more deep analysis the tears represent the crying of the speaker because the loss of someone he loved. Also tell us that the pain probably will never leave because the crying has not stopped since she left.