My living room features four guitars on various stands, along with a five-string banjo. When I’m listening to recorded music at a high-enough (not necessarily that loud) volume, I hear and can often see the open strings vibrating sympathetically with certain notes. This is known as resonance.
I recently wrote, describing the Siddur as a learning experience and a compendium of basic Jewish source-material, that constant repetition over time will embed many words, verses, psalms and rabbinic truths into our hearts and minds. Even if we don’t daven “perfectly”, with complete focus, kavanah and devotion each time (I certainly don’t and I doubt if there are many, if any at all, who are able to do this), the words and phrases continue to deeply reinforce their impressions each time we revisit them.
These words were not arbitrarily drawn whole-cloth from the air, but were deliberately chosen by our earlier sages, all of them masters of both niglah (revealed Torah) and nistar (mystical Torah) for a set of reasons, some of which we can understand, most others we have to work very hard to even begin to understand. One of the reasons behind this design is to establish and form a network of resonant associations we experience whenever we read from the Tanach or learn our traditional seforim. We see everywhere we look a shimmering field of words and phrases we’ve seen before, and when we bring our studies back to our tefilla even more of our siddur experience lights up ever brighter for us. We create a symphony within ourselves, then throughout our communities and, together we participate in this “mega-symphony” of Kol Am Yisrael, the entire Jewish people, stretching not only across the world, but across all time. And we each contribute exactly our own unique voices.