"The bull charged and Romero waited for the charge, the muleta held low, sighting along the blade, his feet firm. Then without taking a step forward, he became one with the bull, the sword was in high between the shoulders, the bull had followed the low-swung flannel, that disappeared as Romero lurched clear to the left, and it was over. The bull tried to go forward, his legs commenced to settle, he swung from side to side, hesitated, then went down on his knees, and Romero's older brother leaned forward behind him and drove a short knife into the bull's neck at the base of the horns."
An author's main purpose for using asyndeton is to present information in an efficient way. The writing is more fluent than it would be if a writer used multiple conjunctions and or punctuation. Hemingway, in particular, uses asyndeton because it allows him to use his simple sentences with more flow.