Within the depth-psychology corpus, ‘Blending’ operates on at least three distinct registers, each illuminating a different dimension of psychic and philosophical life. In the Stoic tradition as documented by Long and Sedley, blending (krasis) denotes a thoroughgoing physical interpenetration — the mutual coextension of substances through one another without loss of individual qualities — a model that has resonated with later accounts of how soul pervades body or how active pneumatic principles animate passive material substrates. In the Internal Family Systems framework of Richard Schwartz, blending becomes a precise clinical and phenomenological term: the process by which a ‘part’ of the psyche floods or overtakes the Self, temporarily assuming executive control of consciousness, behaviour, and embodied experience. This IFS usage generates a distinctive therapeutic lexicon — detecting parts, unblending, direct access — and carries significant clinical stakes, since blended states foreclose the Self-led perspective necessary for healing. A third, more aesthetic and mythic usage threads through Hillman, Nichols, and Zimmer, where blending names the sacred or alchemical commingling of opposites — fire and water, spirit and matter, masculine and feminine — producing a qualitatively new third. These three registers converge around a shared tension: how distinct essences or agencies can interpenetrate without annihilating one another’s individuality, and what the conditions are under which such interpenetration becomes generative rather than destructive or pathological.
Blending definition, 281 detecting parts and, 178–179 early in therapy, 111–112 overview, 22, 43–44, 51
Schwartz’s index entry establishes blending as a formal, defined IFS technical term, central to the therapy’s conceptual architecture, directly linked to the detection of parts and the developmental arc of treatment.
, Internal Family Systems Therapy, 1995thesis
Early in therapy the client’s consciousness is often ‘up for grabs,’ with parts blending and unblending as they struggle for influence and control.
Schwartz describes blending as the dynamic, fluctuating process by which parts compete to occupy the client’s consciousness, rendering inner experience chaotic and undifferentiated before therapeutic work can begin.
, Internal Family Systems Therapy, 1995thesis
When we are with a person who is blended with an extreme part, we are at risk of becoming extreme as well.
Schwartz argues that blending is contagious across the therapeutic dyad — an extreme part occupying one person tends to activate corresponding extremity in the other, making unblending essential to Self-led clinical work.
, Internal Family Systems Therapy, 1995thesis
That the theory was particularly designed to accommodate the blending of unequal constituents is clearly suggested by the attention given to this point in C8-I2.
Long and Sedley argue that the Stoic doctrine of through-and-through blending (krasis) was formulated precisely to account for the interpenetration of radically unequal substances, such as a drop of wine in a vast sea, while each retains its own qualities.
, The Hellenistic Philosophers, 1987thesis
The Stoic conception of ‘through-and-through blending’ (see 48) sets no limit to the relative quantities of its constituents.
Long and Sedley locate Stoic through-and-through blending as the explanatory mechanism for all qualitative differentiation in matter, mediated by pneumatic breath whose proportions of fire and air vary freely.
, The Hellenistic Philosophers, 1987thesis
a measure of wine is blended with a large amount of water and assisted by it to attain an extension of that size.
The canonical Stoic illustration of krasis — wine blending with a vast quantity of water — demonstrates that an active constituent can pervade and coextend with a far larger passive body while both preserve their respective substances.
, The Hellenistic Philosophers, 1987supporting
the Angel Temperance blends two opposite aspects or essences, producing life-giving energy.
Nichols reads the Tarot’s Angel Temperance as an archetypal image of blending as coniunctio — the interpenetration of polar opposites (spirit/flesh, masculine/feminine, conscious/unconscious) to generate a qualitatively new, vitalizing third essence.
, Jung and Tarot: An Archetypal Journey, 1980thesis
This pattern represents a perfect, enigmatical blending of polar-opposites. In it we may sense the dionysiac ambiguity, the ominous smile, of the forces of life.
Zimmer identifies Shiva’s dance as a mythological embodiment of blending, in which the simultaneous presence of grace and terror, asceticism and vitality, constitutes a single enigmatic whole rather than a mere juxtaposition.
, Myths and Symbols in Indian Art and Civilization, 1946supporting
I do not know how the fusing, blending, and smoothing are achieved, but it is important to note that the mystery is not particular to consciousness; it pertains to other functions such as motion.
Damasio invokes blending as the neural-phenomenological problem of how multiple parallel generators of consciousness are unified into a seamless, singular experience — a problem he acknowledges remains unsolved but generalises beyond consciousness to motor function.
, The Feeling of What Happens: Body and Emotion in the Making of Consciousness, 1999supporting
how can we possibly think that in a mixture the relation of matter with matter, mass with mass, is contact and that only the qualities are fused?
Plotinus challenges the adequacy of mere surface contact as a model for mixture, insisting that genuine blending requires material interpenetration throughout, not merely the fusion of abstract qualities — an argument that parallels Stoic krasis.
, The Six Enneads, 270supporting
Central to this art is the relationship between us and our clients, which takes shape through a blending of the following factors:
Masters uses blending in a softer, relational sense to describe the therapeutic encounter as constituted by the dynamic convergence of multiple qualitative factors — presence, attunement, and intuition — rather than a single technique.
, Spiritual Bypassing When Spirituality Disconnects Us From, 2012supporting
The blending in of white obliterates the difference between light and dark, light and shadow.
Hillman, engaging Wittgenstein’s Remarks on Colour, employs blending in a specifically chromatic and alchemical register to articulate how the introduction of white into a colour field collapses the differentiating tension between light and shadow.
, Alchemical Psychology, 2010aside
Blending simple style with narrative comprehensiveness, the book became an immediate popular success within the fellowship.
Kurtz uses ‘blending’ in a purely literary-stylistic sense to characterise the rhetorical achievement of a biographical work within the AA tradition, with no psychological or philosophical valence.
, Not God A History of Alcoholics Anonymous, 2010aside