I recall a clash 'twixt moi re DMV drivers tests--re bikes:

They invented some koan re whether you pull-up? or -down? in some weird Ex.
I realized that, sitting astride my stopped bike: Only my muscle-memory had forever kept me riding;
I could not translate the words of this silly script into: What Got Done by the body (gravity + centrifugal +) re
Where?/How? do you Press-instantly on handlebars!

Try it sometime: por moi, Words failed.
Kinda like trying to describe how-you-spit? re ..lungs, mouth embouchure etc. :-/