The term 'Mass' operates across two largely distinct registers within the depth-psychology corpus, and the tension between them is itself illuminating. The first register is liturgical and alchemical: Jung devotes sustained attention to the Christian Mass as a rite of transformation whose deep structure parallels the sacrificial visions of Zosimos and the procedures of alchemy — both involve dismemberment, consecration, the production of a 'divine water,' and the metamorphosis of substance into spirit. For Jung this convergence is not coincidence but evidence that the Mass condenses an archetypal pattern of psychic transformation into ritual form, making it one of the richest psychological documents in Western religion. The second register is sociological and clinical: 'the masses' (mob, mass-man, mass psyche) represent for Jung, Neumann, and their inheritors the catastrophic dissolution of individuality into a centerless collective, the regression of differentiated ego-consciousness into an undirected, shadow-dominated agglomeration. Neumann sharpens this contrast by distinguishing the archaic group — in which the collective unconscious still tends toward centroversion — from the modern mass, which is 'the decay of a more complex unit into a centerless agglomeration.' A third, minor thread runs through von Franz and Pauli: the physical concept of mass as variable, relational quantity, invoked to bridge psychic intensity and physical energy. Together these usages map the full range of the term's conceptual labor in the library.
The Mass is a conscio[us ritual act]... The Grace conferred by the Mass; similarity of water chalice and font; water a symbol of grace.
Jung presents the Christian Mass as a conscious ritual homologue to the alchemical and shamanic sacrificial process, mapping each element of Zosimos's vision onto a liturgical counterpart to argue that the Mass encodes an archetypal transformation pattern.
, Psychology and Religion: West and East, 1958thesis
The autonomy of the unconscious reigns supreme in the mass psyche with the collusion of the mass shadow-man who lurks in the unconscious personality... The mass, therefore, is the decay of a more complex unit not into a more primitive unit but into a centerless agglomeration.
Neumann argues that the modern mass is not a reversion to archaic group psychology but a pathological disintegration in which shadow dominates and centroversion is wholly absent.
, The Origins and History of Consciousness (Princeton, 2019thesis
Group possession, therefore, is never destructive in the same sense that mass action is destructive, where the mass consists of psychologically unrelated, or only momentarily related, atomized individuals.
Neumann distinguishes the transformative, symbol-mediating archaic group from the destructive modern mass, whose anonymity and lack of mutual knowledge preclude any integrating regulation.
, The Origins and History of Consciousness (Princeton, 2019thesis
only to create an amorphous mass whose preliminary symptoms can already be seen in the modern phenomenon of the mass psyche... the inner consolidation of the individual, who is otherwise threatened with inevitable stultification and dissolution in the mass psyche.
Jung identifies the mass psyche as the terminal product of the erosion of exogamous and religious structures, and prescribes individual consolidation as the sole remedy.
, The Practice of Psychotherapy: Essays on the Psychology of the Transference and Other Subjects, 1954thesis
Mass, the, 355 mass(es), 275ff anonymity of, 154, 230 Churches and, 275f industrialized, 200 leaders and, 154, 230, 253, 275 and manifestation of archetypes, 229
This index entry from Civilization in Transition confirms the structural centrality of both 'the Mass' (liturgical) and 'the masses' (sociological) in Jung's mature cultural writings, with explicit links to anonymity, leadership, archetypes, and mass-mindedness.
, Civilization in Transition, 1964supporting
mass (mob), 349 identity with, 175 shadow and, 267... Mass, the (religious rite), 115, 117 Black, 191 for the Dead, 298n; parody of, 260 massa confusa, 301
The Archetypes index juxtaposes the mass-as-mob (linked to shadow and identity-loss) with the Mass as religious rite and the alchemical massa confusa, revealing the term's dual valence within a single volume.
, The Archetypes and the Collective Unconscious, 1959supporting
since mass and energy are of the same nature, mass and velocity would be adequate concepts for characterizing the psyche so far as it has any observable effects in space: in other words, it must have an aspect under which it would appear as mass in motion.
Von Franz extends Einstein's mass-energy equivalence to argue that the psyche, insofar as it produces observable physical effects, must possess an aspect expressible as mass in motion, bridging depth psychology and natural science.
, Psyche and Matter, 2014supporting
Einstein showed... that these two conservation laws are actually only one. Whenever energy is changed, then mass is changed too... even light has become matter now... It has mass and weight; it is not different from ordinary matter.
Pauli explicates the mass-energy equivalence as a profound conceptual expansion of what counts as 'matter,' providing the physical-scientific background that von Franz and Jung invoke when connecting psychic energy to physical mass.
, Writings on Physics and Philosophy, 1994supporting
the mass of the corpuscle is variable according to speed, formulated by Lorentz's law... a corpuscle which cannot be characterized by a rigorously fixed mass representing the substantiality of an unchangeable matter.
Simondon uses the relativistic variability of electron mass to undermine substantialist atomism, arguing that mass is a relational rather than intrinsic property — a position that resonates with depth-psychological critiques of fixed psychic substances.
, Individuation in Light of Notions of Form and Information, 2020supporting
The fact that the transformative process takes the form of a 'punishment'... may be due to a kind of rationalization or a need to offer some explanation of its cruelty.
While not explicitly naming the Mass, this passage contextualises the sacrificial logic — dismemberment, guilt, and transformation — that Jung treats as the psychological substrate of the Mass rite.
, Psychology and Religion: West and East, 1958aside