Peace
The sound of spring water always puts you at peace.
Everything from winter is melting and trickling and thawing. All the dripping sounds fill you with a peace you can barely describe.
たい
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You want to feel this peace all the time, not just in spring, so you dip your tie (たい) in the spring water. Now your tie is making the peaceful dripping sounds you love.
Imagine carefully dipping all of your ties in the peaceful spring waters and hearing that sweet sound you love at all times.