It is interesting to read about noema and noesis (Dourish p. 105). I was struck by the fact that we have to recognize something and we have to also distinguish between seeing it, or remembering it or imagining it. It reminds me of the fact that my two year old does not understand the difference between dreams and reality. When she wakes up with a bad dream she may think that she was remembering reality or else experiencing reality. She does not recognize a dream as some sore of imagination of non-reality.