I attended my first silent meditation retreat 2 years ago. Coming out of the noble silence for me was similar to your experience; the noise of normal conversation seemed over-loud. I realized then how little of what we say is necessary, how much is filler.
As a writer, this was chastening. So I switched to poetry.
I found this echoed in your choice of Chief Joseph's quote: "It does not require many words to speak the truth."