The speaker pushes back against everyone who thinks they have them figured out. Each stanza starts with how others see them: quiet, weak, selfish, calm. Then the word "darling" cuts in. It sounds tender, but it also carries a hint of weariness, as if the speaker is patiently correcting a person who has judged too fast.
The "wall" is the central image. From outside it looks like peace and normalcy, but the speaker admits, "I'm a mess." The poem suggests that hiding pain is a kind of survival, and that being understood takes real listening, not just hearing words. Calling themselves "an unsolvable riddle" shows how hard it is to be known.
The mood is guarded, tired, and quietly vulnerable. The darkness that is "always lurking" suggests a struggle that never fully ends. The last line, "I'll be okay," feels uncertain. It could be a reassurance to others, or something the speaker is trying to believe.