When I first asked Peter what this understanding is that he's talking about, he started talking about what budo is for and what is "worthwhile" about it. I do not think these things are separable from the question of why we practice budo.
Well, this is still a departure from what budo is (yes, what it's for and what's "worthwhile" about it are not the same as what it is), but...why aren't they separable from the question of why we practice? Seems to me y'all are trying to come up with unified definitions, and maybe you can, of what budo is/is for/has that's "worthwhile". But there will never be a unified answer to why we practice.