Soul, or mental body, which has, by analogy, its own anatomy and physiology. The metaphysical conditions in which it exists are very different from those we have developed to understand and operate within the world of waking, physical reality. In the latter instances of the same archetype are functionally distinct, but this is not so in the former. Whereas the metric in physical reality is based on time and space, in subtle reality it also includes the formative idea, which is not itself quantitative, but affects the quantitative values of the other parameters. This is just a way of trying to get at the phenomenology of this realm, its peculiar multi-dimensionality, and the relations between what is conscious and unconscious. Also the interrelation of quantitative and qualitative differences.