All great explanations, and picture.

I really understand this now and I have memorised the phrase.
Good to know that it is in fact commonly used. I came across it in connection with looking into the different meanings of "сила"

Olya... yeah that was a beginners mistake with the "ум" -- I do occassionally mix them up... I.e. I write "B" when I mean "Б" etc...
The handwriting doesn't exaxtly make it easier.