Self in Jungian psychology
Historically, the Self, according to Carl Jung, signifies the unification of consciousness and unconsciousness in a person, and representing the psyche as a whole. It is realized as the product of individuation, which in his view is the process of integrating various aspects of one's personality. For Jung, the Self is an encompassing whole which acts as a container. It could be symbolized by a circle, a square, or a mandala.
Two center hypothesis
The idea that there are two centers of the personality distinguished Jungian psychology at one time. The ego has been seen as the center of consciousness, whereas the Self is defined as the center of the total personality, which includes consciousness, the unconscious, and the ego; the Self is both the whole and the center. While the ego is a self-contained center of the circle contained within the whole, the Self can be understood as the greater circle.
Emergence of the Self
Jung considered that from birth every individual has an original sense of wholeness—of the Self—but that with development a separate ego-consciousness crystallizes out of the original feeling of unity. This process of ego-differentiation provides the task of the first half of one's life-course, though Jungians also saw psychic health as depending on a periodic return to the sense of Self, something facilitated by the use of myths, initiation ceremonies, and rites of passage.
Return to the Self: individuation
Once ego-differentiation had been more or less successfully achieved and the individual is somewhat anchored in the external world, Jung considered that a new task then arose for the second half of life - a return to, and conscious rediscovery of, the Self: individuation. Marie-Louise von Franz states that "The actual processes of individuation - the conscious coming-to-terms with one's own inner center (psychic nucleus) or Self - generally begins with a wounding of the personality". The ego reaches an impasse of one sort or another; and has to turn for help to what she termed "a sort of hidden regulating or directing tendency...[an] organizing center" in the personality: "Jung called this center the 'Self' and described it as the totality of the whole psyche, in order to distinguish it from the 'ego', which constitutes only a small part of the psyche".
Under the Self's guidance, a succession of archetypal images emerges, gradually bringing their fragmentary aspects of the Self increasingly closer to its totality. The first to appear, and the closest to the ego, would be the shadow or personal unconscious - something which is at the same time the first representation of the total personality,and which may indeed be at times conflated with the Self. Next to appear would be the Anima and Animus, the soul-image, which may be taken as symbolising the whole Self. Ideally however, the animus or anima comes into play in a mediating role between the ego and the Self. The third main archetype to emerge is the Mana figure of the wise old man/woman - a representative of the collective unconscious akin to the Self.
Thereafter comes the archetype of the Self itself - the last point on the route to self-realization of individuation. In Jung's words, "the Self...embraces ego-consciousness, shadow, anima, and collective unconscious in indeterminable extension. As a totality, the self is a coincidentia oppositorum; it is therefore bright and dark and yet neither". Alternatively, he stated that "the Self is the total, timeless man...who stands for the mutual integration of conscious and unconscious". Jung recognized many dream images as representing the self, including a stone, the world tree, an elephant, and the Christ.
Perils of the Self
Von Franz considered that "the dark side of the Self is the most dangerous thing of all, precisely because the Self is the greatest power in the psyche. It can cause people to 'spin' megalomanic or fall into other delusionary fantasies that catch them up", so that the subject "thinks with mounting excitement" that he has grasped the great cosmic riddles. He therefore risks losing all touch with human reality. 
In everyday life, aspects of the Self may be projected onto outside figures or concepts such as the state, God, the universe or fate. When such projections are withdrawn, there can be a destructive inflation of the personality - one potential counterbalance to this being however the social or collective aspects of the Self.
Evolution of the Jungian concept of Self
Young-Eisendrath and Hall write that 'in Jung's work, self can refer to the notion of inherent subjective individuality, the idea of an abstract center or central ordering principle, and the account of a process developing over time'.
In 1947 Michael Fordham proposed a distinct theory of the primary self to describe the state of the psyche of neonates, characterised by homeostasis, or 'steady state' in his words, where self and other (usually the mother) are undifferentiated. It predicates that there is no distinction between the internal and external world, and there are as yet no different components in the internal world. Fordham derived his hypothesis partly from the Jungian concept of the archetype of the self, and the psychoanalytic idea of internal 'objects'. The primary self, taken as the original totality of each person, with its 'archetypal' tendencies to develop aspects, such as language, complexes etc., enters into relation with the external world through a continuous dual process of de-integration and re-integration, a process said to be characteristic of the first half of life.
Redfearn, for instance, who has also synthesised the classical archetypal theory with a developmental view based on years of clinical observation, sees the self as probably consisting of a range of subpersonalities over a lifetime.
According to Peter Fonagy the connections between "post-Freudians" and "post-Jungians" have been further strengthened after the advent of contemporary neuroscience in this connection, as outlined in his foreword to Jean Knox's update on the "formation of internal working models", which he describes as a milestone.
Fritz Perls objected that 'many psychologists like to write the self with a capital S, as if the self would be something precious, something extraordinarily valuable. They go at the discovery of the self like a treasure-digging. The self means nothing but this thing as it is defined by otherness'.
- Redfearn, J.W.T. (1985). My Self, My Many Selves. Academic Press. p. 25. ISBN 0-12-584555-3.
- Josepf L. Henderson, "Ancient Myths and Modern Man" in C. G. Jung ed., Man and his Symbols (London 1978) p. 120
- Research in the social scientific study of religion. Village, Andrew, Hood, Ralph W., Jr. Leiden: BRILL. 2017. p. 74. ISBN 9789004348936. OCLC 994146016.CS1 maint: others (link)
- Lawson, Thomas T. (2008). Carl Jung, Darwin of the mind. London: Karnac. p. 161. ISBN 9781849406420. OCLC 727944810.
- Zweig, Connie (1991). Meeting the Shadow. Los Angeles: J.P. Tarcher. ISBN 0-87477-618-X. p. 24.
- Henderson, "Myths" p. 120
- M-L von Franz, "The Process of Individuation" in Jung ed., Symbols p. 169
- von Franz, "Process" p. 161-2
- Jolande Jacobi, The Psychology of C. G. Jung (London 1968) p. 40
- Barbara Hannah, Striving towards Wholeness (Boston 1988) p. 25
- von Franz "Process" p. 182-3
- C. G. Jung, Alchemical Studies (London 1978) p. 268
- von Franz "Process" p. 193 and p. 195
- J. Jacobi, The Psychology of C. G. Jung (London 1946) p. 115
- C. G. Jung, The Archetypes and the Collective Unconscious (London 1996) p. 183 and p. 187
- Jacobi (1946) p. 118
- C. G. Jung, Mysterium Coniunctionis (London 1963) p. 108n
- C. G .Jung, "Psychology of the Transference", Collected Works Vol. 16 (London 1954) p. 311
- On this last, see "Christ, a Symbol of the Self" in Collected Works Vol. 9ii, p. 36ff. He explicitly says, "Christ exemplifies the archetype of the self." [italics his]
- von Franz, Process, p.234.
- Anthony Stevens, On Jung (London 1990) p. 41
- Stein, Leslie (2016-05-17). "Becoming Whole: Jung's Equation for Realizing God". Psych Central. Retrieved 2019-04-29.
- von Franz, Process, p. 238.
- Fordham, Michael (1947). "Integration, disintegration and early ego development". Nervous Child, 6 (3). 6 (3): 266–77. PMID 20254527.
- Fordham, Michael (1976). The Self and Autism. The Society of Analytical Psychology. p. 16. ISBN 0-433-30882-6.
- J.W.T. Redfearn (1977). "The Self and Individuation". J. Of Analyt. Psychol.(22), 2. 22 (2): 125–141. doi:10.1111/j.1465-5922.1977.00125.x. PMID 873855.
- Knox, Jean (2004). Archetype, Attachment, Analysis. Hove and New York: Routledge. pp. 40–69. ISBN 1-58391-129-4.
- Knox, Jean (2010). Self-Agency in Psychotherapy: Attachment, Autonomy, and Intimacy. New York: W.W. Norton.
- Fritz Perls, Gestalt Therapy Verbatim (Bantam) p. 8