When I entered the restroom at a Chinese restaurant where I had dinner one day, I found a piece of paper on the wall with Bruce Lee's face and the words "Don't think, feel!" underneath it.
It seemed like a photo of a scene from "Enter the Dragon". 

I like this phrase because thinking is often nothing more than noise when I’m actually working with my hands to create something. 

On the other hand, the line between "thinking" and "feeling" may not be as clear as we think.
There is a gray area between these two, and I believe the most powerful state is the one in which we are thinking and feeling, or feeling and thinking at the same time. 
Moreover, the "thinking" here is probably not the kind of thinking that uses words.

Therefore, I interpret the phrase as "Don't use words. Feel!". 

Picture hanging outside the door of the restroom showed Mao Zedong jumping rope.
This Chinese restaurant was quite unique.