Four short lines are all Dave Bonta needs to set a cluttered mind beside a single mourning bird, and the poem happens in the space between them. It opens with a flat statement: "The mind is a crowded altar." Nothing explains it, and that confidence is part of its force. An altar is a place set apart for offering and attention, yet this one is crowded, so full of objects, thoughts and devotions that none of them can be seen clearly. The metaphor suggests a mind that has turned its own sacred space into a storeroom.
Then the poem turns outward. "I hear the music / of an owl in the garden." The move from "mind" to "garden," from a closed, candle-heavy interior to the dark outdoors, matters. The owl sits outside the crowd. The title, "Exclusion," allows two readings, and the poem never chooses between them. Perhaps the mind's clutter shuts out the world, and the owl is what has been excluded. Or exclusion is something the poem performs, cutting away until only one sound remains. Either way, the speaker does hear. Something gets through the congestion, and the poem is interested in what it is.
What gets through is strange. The last line, "mourning the loss of all the notes," is built on a paradox. Grammatically, "mourning" attaches to the owl, but because it sits right after "music" it can seem to describe the music itself. An owl's call is famously limited, a few low hoots, so the idea that it grieves a lost abundance feels both plausible and odd. "All the notes" is a large phrase, suggesting a whole scale, a whole repertoire. The owl's song is therefore music defined by what it lacks, a song about the disappearance of song. A reader may also catch a faint echo of "morning" inside "mourning," which is a quiet irony for a night bird. That is only an echo in the sound, but it fits the poem's habit of doubling.
The form is as spare as the subject. There is no rhyme and no regular meter. The lines run roughly eight, five, seven and eight syllables, so the second line, "I hear the music," is the shortest, a small pause in which the speaker simply listens. The final line is the longest and slowest, weighted with long vowels. Sound does a lot of quiet work here. "Crowded" and "owl" share the same diphthong, so the clutter of the mind and the cry of the bird are faintly related. The rounded vowels then keep recurring in "owl," "all," "loss," "mourning" and "notes," as if the words were imitating a hoot. "Music" and "mourning" begin with the same letter and sit in neighbouring lines, almost as if they were one word split in two.
The diction is worth noticing too. "Altar" and "mourning" come from the vocabulary of ritual, while "owl" and "garden" come from the natural world. The poem lets the two meet without comment. It is hard to say whether the garden is an escape from the altar or another kind of church, with the owl as its only, reduced, choir.
What makes the poem worth reading is that it acts out its own idea. It is itself a music with almost no notes. Everything inessential has been removed, so the few images left carry a great deal. It also resists a tidy moral. It does not say the crowded mind should be emptied, and it does not say loss is beautiful. It only observes that the music the speaker hears is made of absence, and that a mind too full to hear much may still be reached by one bird grieving what has gone. A reader finishes the poem in the same state: with little on the page and a lot left ringing.