The analogy "like dogs barking at our world" also applies to the dogs, implying that the lads were uncivilized and violent. "Our world" exposes the poet's worldview, in which he believes he lives in a completely separate world because of how different he is from them. Dogs can be heard barking in many lines of the poem but this analogy has been used most often with reference to the last line. It can be interpreted as the poet wanting his civilization to warn off would-be attackers since they are too dangerous for ordinary dogs to handle.