The term dissociation is here used for a condition in which the organizing process in an individual fail to develop one characteristic form, and two … - Lancelot Law Whyte

Man set out on a two-thousand-year trial of a particular method of differentiation, adapting the structure of his mental processes, conscious and unconscious, to a certain general form. We need to consider only the most general characteristics of this form, and for the purpose of this analysis, there reduce to two. Thought may be either unitary or dualistic (since other pluralistic forms may be neglected), and it may be either process or static. These two pairs produce four combinations or types of thought: unitary-process, unitary-static, dualistic-process and dualistic-static. The first and the last are the most stable and common types; the unitary-static and dualistic-process forms are less frequent and may be regarded as anomalous forms appearing at times of transition. (p. 193-194)

Unitary man escapes these confusions through his recognition that one factor is of supreme importance: the maturity proper to man can only come through the experience of adult unity. This experience may come in many ways, but it means that the individual has, for the moment, outgrown the sense of any division, either within himself of from others, through a mature relations to at least one other person. Tension is inherent in the process, but tension does not become frustrating conflict if the overriding unity is realized. (p. 255)

In Plato we find the essential form of the European attitude: the intellectual rejection of the phenomenal world of process on account of its sordid ruthlessness and the emancipation of the spirit within its own realm of permanent intellectual clarity and harmony. The ancient, aristocratic, tragic consciousness disappears; man sets out to console his spirit and protect his body by the exploitation of static ideas. (p. 201)