It is less vivid; "raced after" emits a feeling of either action, suspense, or energy. It allows the reader to connect and fully understand what is going on. "ran after" is vague and emits little high energy.
The egwugwu are a symbol of the culture and independence of the Umuofia. The egwugwu are seen as ancestral gods, though in actuality they are masked Umuofia elders. The egwugwu serve as respected judges in the community, listening to complaints and prescribing punishments and deciding conflicts
Steve wanted to play professional basketball, however he was only 5'8.
I would have to read the paragraph to give you a proper answer. Could you perhaps take a picture of the paragraph so I may read it?