Three short lines, and the whole poem is a question. The speaker isn't asking for information. They're asking out of unease, maybe bewilderment, about the world they find themselves in as they age. The word "growing" matters here: old age isn't treated as a sudden arrival but as a slow process, something still happening, while the world around them keeps changing or revealing itself in ways they didn't expect.
The poem never says what is wrong. It doesn't name war, technology, loneliness, or anything else, and that silence is part of its effect. The reader has to fill in the gap, and the question can feel worried, sad, or even a little angry, depending on how you hear it. It could also be tender, the wondering of someone trying to make sense of things.
The mood is quiet and unsettled. With so few words and no answer, the poem leaves you hanging in the same uncertainty the speaker feels.