Jessea L. Vaughan's "Lonely" tries to show what isolation feels like from the inside, and it does so by repeating one phrase, "When you are lonely," and then finishing it with a new image each time. The world becomes a void, hope is crushed like an insect, the soul shrinks to a speck of dust, and happiness turns into a caged bird that can only sing sad songs. Nearly every picture is about something small, fragile, or trapped.
The speaker addresses "you," which makes the feeling sound shared and familiar rather than personal to one person. Near the end, the poem moves toward longing for "another city" and a different life, and the gap between who you want to be and who you are becomes a duel inside your head. The only winner is "a castle of tears." The mood is heavy and hopeless, and the final lines suggest that when you are lonely, even your senses and feelings seem limited to sorrow.