According to Raja Sharma, Whitman's use of "anaphora" forces the reader "to inhale several bits of text without pausing for breath, and this breathlessness contributes to the incantatory quality". This sense of incantation in the poem and for the framework for the expansive lyricism that scholars have called "cataloguing". Whitman's poetry features many examples of cataloguing where he both employs parallelism and repetition to build rhythm. Scholar Betty Erkkila calls Whitman's cataloguing the "overarching figure of "Leaves of Grass", and wrote: