The speaker begins with a small admission: they slept through the rain, or simply didn't notice it. It's a quiet detail, but it sets up a sense of missed moments, of life happening just outside our attention.
The poem then widens from "I" to "we," a group of people who think of themselves as citizens of the ordinary. The title, "Mediocracy," seems to play on "democracy" and suggests a world run by the average and the unremarkable. These people "sing other songs," which could mean that their music is private, modest, or simply different from grand public ones. The tone isn't angry. It feels gentle and a little wistful.
The last lines place us "by the sea," a place that usually invites big thoughts, yet the speaker is still "uncertain what to think and how." The mood is hushed and unresolved. Even something vast doesn't deliver clarity, and the poem leaves us sitting calmly in that not-knowing.