The speaker is addressing someone, or something, that seems to be listening to the night, and the tone is sharp and a little mocking. The opening question accuses the listener of already knowing everything the speaker could say, so the listening feels pointless, like sightseeing. Calling this figure "a tourist of the night" suggests someone who visits the dark without really living in it.
The poem then flips the idea of emptiness. What looks vacant is "a fully inhabited tenement," crowded with unseen life. The image of "inscrutable fruit" that is "more pungent" than the listener realizes, and the talk of becoming "someone else's morsel," hint that real life in the dark involves risk, appetite, and being eaten as well as eating. The listener stays safe and detached. The final question, "Who cooks for you?", is odd and teasing. It seems to suggest this outsider is looked after, while others must fend for themselves. The mood is wry, challenging, and strangely intimate, with the night feeling busy rather than silent.