Well, it matters a good deal where you come across it. If this sentence is printed on a slip in a Chinese fortune cookie you may well take it as an unusually enigmatical fortune, but when it is offered (as it is here) as an example, you cast around for possibilities among uses of language familiar to you. Is it a riddle, asking us to guess the secret? Might it be an advertisement for something called Secret? Ads often rhyme Winston tastes good, like a cigarette should" and they have grown increasingly enigmatic in their attempts to jostle a jaded public. But this sentence seems detached from any readily imaginable practical context, including that of selling a product. This, and the fact that it rhymes and, after the first two words, follows a regular rhythm of alternating stressed and unstressed syllables (round in a ring and suppose') creates the possibility that this might be poetry, an instance of literature.