The finality of "stopping the tide": The nature of the tide is "recurrence" - the surge at high tide and the blank space after low tide are the laws of nature, hiding the expectation of "it will come again". But "stop tide" directly breaks this cycle, which means that the tide will always recede and never rise again.
But "stop the tide" is so unreasonable - the misunderstanding between the two has never been resolved.
"Silence" is a deathly silence that is stingy even in saying farewell. It's not "nothing to say", but "there are thousands of words to say but only silence". Just like when the tide recedes, there are only two shadows back to back on the beach. "Actually, I..." Is clearly surging in my heart, but no sound comes out of my throat. The unspoken words "Is it for me?" And the unspoken words have become silent words sinking in the dead water, without even an echo.
Concept: Silence is a two-way prison