The “b” sounds throughout the stanza recall Orsino’s opening appeal to “Beatrice,” whose “bright form” haunts him. Beatrice’s body is dispersed from her name to the other lines in this “B” sound, eventually fading from the poem due to her form being, at the moment, only a figment of Orsino’s fantasy, and she ends as a phantom and shadow. The “B” stands “between” what he desires and its actuality; the “b” becomes the very obstacle he seeks to overcome, yet is also “beyond” it, until the “b” appears in Orsino’s blood, incorporated into his desire and fantasy.