I think something along the lines of influence. Dialect kind of means accent.
In the first part of the novel "Things Fall Apart" , written by Achebe, the author narrates the events in an objective way, without giving personal opinion of showing feelings and symphathy. The readers are given with the possibility to provide the text with his or her own emotions. The readers also have the decision about the characters. It is through the readers' perspective wheter the characters are estimable or even if their behaviour is justified. This purely objective tone appears through out all the first part of tve text. The tone in the first part is also supported by the use of native fables, parables and words which gives the story a rustic and quaint tone. It is towards the end when the author, Achebe, starts showing feelings towards the Umuofia.
Presenting your ideas one after the other with out interrupting the natural flow
