Themes
And the tear that we shed, though in secret it rolls, Shall long keep his memory green in our souls.
— Thomas Moore ‧ Oh breathe not his Name

Behind the line May contain spoilers.
Our reading
An editorial interpretation.
Thomas Moore's poem speaks of a tear shed privately. Even hidden, it will long keep a memory green, meaning fresh and alive, in those who mourn. Quiet grief becomes a way of remembering someone faithfully.
Context reviewed