I'm having trouble locating a phrase (possibly a loan word or phrase) similar to raison d’être, that means someones reason for doing something and end goal rather than reason for being. Kinda like a MacGuffin and raison d’être rolled into one descriptive turn of phrase.
Examples of things this phrase could describe are:
- The Harrison Ford's one-armed man in The Fugitive(1993)
- Szechuan Sauce for Rick in Rick and Morty as it is described at the end of Season 3 Episode 1.
- Starting a Mars colony for Elon Musk.
Maybe mission statement would be a sufficient phrase but I don't feel that it really captures the motivating power that these kinds of end goals have.
Any ideas on a phrase or word that would fit this definition?