- the survival route chosen by an individual, a species, or a unit of matter or energy in the accomplishment of its goal. (NOTE: the purpose is specific and may be closely defined being a subdivision of one of the sub-dynamics. It has been tentatively established by investigation that an individual human being has established his purpose for life at the age of two years and that the actual purpose is not derived in any degree from engrams but is only warped by them.) (DTOT Gloss)