Does ‘trimming your vineyards’ in the Bible symbolize guarding your mind?

The bible talks about trimming your vineyards, and I believe it means hedging and keeping your brain, by driving out evil thoughts.

If you do not fill your mind with good thoughts, the devil will fill your mind with evil thoughts, so to drive out new evil thoughts, you have to introduce and reintroduce over and over again, good thoughts into your life.

Does ‘trimming your vineyards’ in the Bible symbolize guarding your mind?
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