Two short sentences, and a quiet, stunned sadness. In the first, the speaker says that the war "took another," and the loss is so unspecific that we never learn who died or how close they were. What stands out is the strange follow-up: this "seems my due." The speaker treats the death as something owed or expected, as if grief has become a bill that keeps arriving. It could suggest numbness, or a guilty feeling that they deserve to be hurt.
The second stanza turns to rain and imagines it has "a design in raining." The word "as if" matters here. The speaker is tempted to find purpose in nature, or in the war, but the phrasing hints they don't really believe it. Still, the wish for meaning lingers. The mood is bleak and resigned, with a small ache underneath: people look for order in suffering even when none may exist. The brevity makes the feeling hit harder.