When Evergreen notes are factored and titled well, those titles become an abstraction for the note itself. The entire note's ideas can then be referenced using that handle. In fact, this property itself functions as a kind of litmus: as you develops ideas in notes over time and improve the "APIs," you’ll be able to write individual notes which abstract over increasingly large subtrees
— https://notes.andymatuschak.org/z3XP5GRmd9z1D2qCE7pxUvbeSVeQuMiqz9x1C