However, in this case the lullaby effect of "come away O human child" allures the child into a false sense of tranquility and calm which makes him believe he is safe in this environment. Yeats' use of alliteration of the "waters and the wild," "world" and "weeping" ensures a state of balance between the danger of the child's surroundings and landscape and the calming effect of the fairies. The theme of balance is also central to "An Irish Airman." whereby Yeats uses a chiasmus effect between the phrases "years waste" and "waste years" to balance the theme of life and death. This effect of balance is also supported by the loosely lyrical structure of the poem with stanza lengths that vary between 8 to 11 lines with continuous iambic pentameter, each ended by the bitter chorus of refrain, which is juxtaposed with the softening endings of irregular rhyme scheme. The description of the "waters and the wild" seems vague and almost other-worldly whilst on the other hand the human world may be "full of weeping" that the child cannot understand but it is still nonetheless his world.
In the second stanza "by furthest rosses" we are introduced to more detail about this other world. The repetition of the "f" sound is typical of Yeats here, using it to reinforce meaning and create a musical quality in his poetry. The sound is used to echo the sense of escapism, "foot.Flightfrofrothy," whilst reminding us that they are now "far off by the furthest rosses" and becoming ever closer to a location that is remote from humanity. Moreover, the soft alliteration here adds to the sense of secrecy of this mystical operation. Although the child is being drawn into the unknown of the magical landscape of fairyland there is no nightmarish imagery here as the "wave of moonlight" creates a ghostly but inviting effect for both reader and child with the repetition of "mingling" establishing a curious sense of community that is serene.
