Undifferentiated Transcendence
ELI5
It's the feeling you get when you're just "one of the crowd" — like a factory worker who feels like any other worker doing the same job for the same boss — but even though it feels like you're connected to everyone else, you're really still just as alone and separate as you always were; the togetherness isn't real, it's just how the situation makes you feel.
Definition
Undifferentiated Transcendence names the experiential mode in which a subject apprehends itself as one anonymous "for-others" among many, dissolved into a collective field of projects, rhythms, and manufactured objects. For Sartre, this arises paradigmatically in the experience of the "We-subject": when shared labor conditions, industrial tools, or synchronized social rhythms temporarily efface individual singularity, the worker or participant feels themselves as a generic instance of a transcendence — a "pour-autrui" that is not yet anyone in particular. The subject experiences its own agency as already oriented and pre-shaped by an anonymous, consuming "They," whose projects determine the horizon of its activity before any individual choice is made.
Crucially, Sartre insists that this experience is purely psychological and not ontological: it does not constitute a genuine Mitsein (Heideggerian being-with) and does not resolve or bridge the radical, irrecuperable separation between subjectivities that is the ontological baseline of Being and Nothingness. Undifferentiated Transcendence presupposes the primary, antagonistic encounter with the Other (the for-itself being looked at, made into an in-itself) rather than founding any original intersubjective community. It is, on this account, a secondary, derived, and ultimately illusory cohesion — an ideological comfort that masks the underlying structural conflict at the heart of intersubjective being.
Place in the corpus
This concept appears in jean-paul-sartre-hazel-barnes-being-and-nothingness-an-essay-on-phenomenological and sits at the intersection of Sartre's analysis of intersubjectivity and his critique of false collective unity. Within the corpus's broader Lacanian frame, Undifferentiated Transcendence functions as a specification — and a phenomenological precursor — of Alienation: where Lacanian alienation designates the structural subjection of the subject to the signifying chain of the Other, Sartre's concept identifies a concrete experiential modality in which that subjection manifests as depersonalized, anonymous transcendence. The "They" (the consumer, the collective) whose projects pre-organize the worker's activity maps closely onto what Lacan would call the big Other as the locus of the signifying chain that the subject never authored. The concept also resonates with Interpellation and Ideology (cross-referenced but not provided with full syntheses): the worker's absorption into an undifferentiated role is structurally analogous to being hailed into a subject-position that precedes and exceeds individual identity.
In relation to Identification, Undifferentiated Transcendence describes a failure or dissolution of the differentiating function that identification normally performs: rather than the subject seizing on a singular trait (unary trace, einziger Zug) to individuate itself within the symbolic chain, the subject is submerged into a generic, undifferentiated instance. It also bears on Desire and the Gaze: the "alienating transcendence" of the consumer-Other who gazes upon the worker's product (and hence upon the worker as instrument) echoes the Lacanian gaze as that which inculpates and splits the subject from a point it cannot locate or master. Yet Sartre's framing ultimately diverges from Lacan's: for Sartre this is a psychological rather than a structural-ontological phenomenon, and its resolution is at least imaginable; for Lacan, the constitutive alienation it approximates is irremediable.
Key formulations
Being and Nothingness: An Essay on Phenomenological Ontology (page unknown)
the worker, whoever he may be, experiences in work his being-an-instrument for others… the alienating transcendence is here the consumer; that is, the 'They' whose projects the worker is limited to anticipating.
The phrase "alienating transcendence" is theoretically loaded because it names the Other's subjectivity not as a person but as an impersonal structural position ("the 'They'") that constitutively determines the worker's horizon of action; "being-an-instrument" further specifies that undifferentiated transcendence is the mode in which the subject's own transcendence (its for-itself freedom) is experienced as already colonized and reduced to a means — precisely what makes the experience of unity with others an alienated rather than a genuine intersubjective ground.