“We speak not only to tell other people what we think, but to tell ourselves what we think. Speech is a part of thought.” Oliver Sacks.
And images of course.. jiggling around our mind in the most alarming way most of the time. Sitting helps to bring it into view and test the validity of it’s assertions. Thinking is neither good nor bad .. it just is. Its actually pretty useful too when you need to understand and make decisions! “Purposive thinking” is the phrase I like to use.