In other cases, there's no need to translate into a mental concept (which INFPs particularly like to do), but to let the feeling guide in a process, where even everyday mundane activities become creative in striving to meet this ideal. I think this is very evident in ISFPs. I watched my step-dad tape a box up to ship, and it had to be packed "perfectly"; he was really caught up in it. Maybe this is why some ISFPs don't relate to the word "values", as feeling often goes straight to form, where an INFP may be content to theorize.
The imagination helps define these feelings also - there are mental images to connect them to, to relate them to something definable. In this way, values are affected by the external, because they have to be given some context outside of the inner world to even be defined in a comprehensible way.
I remember in past threads other INFPs saying they have a shift in feeling tones nearly constantly, but it's so second nature that it's not really necessarily to analyze all the time. You can break it down if you want to, but that's only done to communicate it to others; I valued aesthetics long before I could put it in those words.
I can see in this cooking analogy how these Feeling ideals manifest in trivial matters (especially since I cook that way ). Of course, the IXFP's Se or Ne influences the manner of expression and how the external is perceived, both shaping how the Feelings manifest and how they are defined on the value level.