It suggests, you might say, the futility of human doings: we go round and around, we can only suppose. More than that, with its rhyme and its air of knowing what it is doing, this text engages the reader in a process of puzzling over dancing and supposing. That effect, the process the text can provoke, is part of its meaning. So. we have the meaning of a word and the meaning or provocations of a text: then, in between, there's what we might call the meaning of an utterance: the meaning of the act of uttering these words in particular circumstances. What oct is this utterance performing. is it woming or admitting, lamenting or boasting for example? Who is we here and what does dancing mean in this utterance