dream types; a dream

i assume that dreams feel different for different people. i remember my dreams as clearly as the events of yesterday; not crystal, but usable memories. my dreams often take on one of three forms: abstract, epic, and instructional.
abstract dreams are not of a visual nature, they are more like a collection of precognitive data that has not yet aligned itself to one of the oft used five senses. abstract dreams often present themselves in the form of emotional or intuitive content within a mathematical or logical context. this is very difficult to understand and leaves me with a feeling of longing for clarity.
epic dreams are distinct in their audial and visual clarity. they normally consist of a number of related events either experienced in the first person, or less often, the third person. the likelihood or realism of these events ranges very dramatically. most epic dreams feel as if they are being experienced for at least several minutes, often several hours or even days. sometimes, certain words, phrases, or images are commonplace to the point of being representative of the dream; i am often left with a very symbolic memory of such words or images.
instructional dreams are more like an educational film or a tutor than an interactive experience. often, a concept or idea is presented from some source other than myself strictly for the purpose of making me familiar with it. these dreams do not endow the same caliber of memory as the epic dreams, and often leave me trying to remember wording or imagery.

two nights ago i had a dream that i would consider instructional, and i was lucky enough to remember the main 'scene' from it, so to speak. i was inside a comfortable limousine and was driving along a highway. beside the highway were several power line towers, and what appeared to be farmland and farmers. i was interested to see the farmers more clearly, who appeared to be asian due to their dress and farming posture. as i tried to look out of the window, the image became foggy. i continued trying to peer through the foggy window for several minutes to minimal avail. a clear voice spoke around me the words "to study something is to contaminate it with your ego". i realized the fog in the window was my reflection.