I've found that love, like duty, is better understood as an
  active verb rather than a noun. I don't believe there is a
  personified Love or a personified Duty, as if ancient Greek
  Gods. I see them both as "doings". Actions. They're also
  understandings, but I even see understandings as an active
  process, for when is the mind and emotion ever truly static? I
  can consider this coffee mug over here static. A noun. I'm aware
  of its continually moving properties, both internally and where
  it's sitting on the planet thanks to the happenstance of having
  many thick objects between it and the center of gravity at the
  middle of the planet... but for my purposes, it works as a noun.
  But Love and Duty are real as doings. I hesitate to say "both
  inner doings and outer doings" because I don't see too much of a
  distinction between inner and outer, except the inner is a bit
  more flexible and creative smile emoticon Defining them can be a
  little tricky: How do you outline Love? How do you outline Duty?
  [to define something is to put an outline around it - and I'm
  thinking a literal outline] So, that's my starting point. I'm
  not sure where to take it from here but I wanted to get this
  concept out and gather some thoughts from others here.