My main motivation with each photo I take is to convey honest emotion.  Whether it's a portrait or a natural landscape, I try to accurately represent the feeling of each moment.  At my best, I allow this to happen naturally by being open to each situation and not interfering too much.  The feeling of each photo could be coming from me, the subject or an interplay between the two.  This bit of ambiguity is what I love most because it creates space for the individual to interpret the emotion through their own experience.