I don't want to in any way compare what we do to the meaning of that phrase, but from a business messaging standpoint, it is very illustrative of the importance of your message. It is the articulated word that defines an entity, or an endeavor.
If you don't have the right word or message for who or what you are, everything else suffers, often fatally.
This is why your message must be right. This is why you continue to work on it, refine it, hone it, grow it, distill it.
Because nothing valuable happens without doing that. Say what you will, do what you will, if you start with the wrong message, you are working uphill with an avalanche coming at you. Business is challenging enough as it is, with competition breathing down your neck, or worse, eating your lunch. So get your message right, and get it out there pointedly, targeted, aggressively, consistently, repeatedly. Do it right. Do it better. Do it louder. Do it more.