I have no idea if your pastor had this kind of practice, but from the article, if he did, it might have helped him memorize the texts. And the memorization, in turn, moght help focusing more and more on the meaning, rather than the words.
Also note that, as far as I know, all texts in the bible (except maybe some parts of the new testament, I am not sure) were transmitted orally for periods ranging from decades to centuries before being written down, and are structured in a way that helps memorization.
We tend to think of memorization as unnecessary if we have unlimited access to the text, but this discussion actually makes me wonder whether memorization might be a powerful way to "unlock" the hidden meaning of some texts.