Writing has power. Power grows through repetition. And repetition, should you reuse the last words of a sentence at the start of the next, is called anadiplosis.
Like the amazing addition of alliteration, anadiplosis is a simple device to give more oomph to your words. Words that are barely changed but pack a lot more punch.
Even if you can't remember the specifics, there's something about Yoda's wisdom that make the logic sound impeccable and irresistible and the message deep. Deep, at least partly, from anadiplosis.
"Fear leads to anger. Anger leads to hate. Hate leads to suffering."
I learned about anadiplosis—and pleonasm, and ordering adjectives—from the entertaining and educational, The Elements of Eloquence by Mark Forsyth. Anadiplosis is from the ancient Greek ana meaning again, and diplous meaning double. The Greeks were fond of their techniques for persuasive speeches.