Puritas Cordis — purity of heart — occupies a pivotal though often oblique position in the depth-psychology corpus, functioning as a threshold concept between ascetic theology and the psychology of individuation. The term arrives in the library principally through alchemical intermediaries rather than through direct monastic citation: the Pseudo-Aristotelian formula 'diadema cordis tui' (diadem of thy heart) circulates through the Aurora Consurgens material annotated by Marie-Louise von Franz, where it names the paradoxical dignity of the purified residue — the ash, the cinis — which survives calcination and becomes the crown of the work. Jung, citing the same passage in Alchemical Studies, reads this diadem as a symbol of psychic wholeness achieved through mortificatio. The Evagrian tradition, represented here through Praktikos scholarship, supplies the classical monastic framework in which puritas cordis names the telos of the praktike — the condition of undistracted prayer, freedom from passion-images in dream, and the soul's capacity to perceive its own light. What makes this term theoretically productive for depth psychology is the tension between its theological register (moral purgation, freedom from sin) and its psychological re-reading (integration of shadow, centering in the Self). Cassian's conferential tradition stands as the historical conduit between desert asceticism and later European interiority, making puritas cordis not a static virtue but a dynamic achievement of what the alchemists would call the opus.
In the library
13 passages
Hunc cinerem ne vilipendas, quoniam ipse est diadema cordis tui, et permanentium cinis, corona victoriae et coagulum lactis.
Von Franz's annotation of the Pseudo-Aristotelian text identifies the diadema cordis tui — the diadem of the heart — as the purified residue of the alchemical calcination, equating it with a corona victoriae that structurally parallels the monastic concept of puritas cordis as the achieved crown of the inner work.
von Franz, Marie-Louise, Aurora Consurgens: A Document Attributed to Thomas Aquinas on the Problem of Opposites in Alchemy, 1966thesis
Cinerem ne vilipendas; nam ipse est diadema cordis tui. Cum autem coagulatum fuerit totum, tunc nominatur mare sapientum.
This passage directly identifies the purified ash — the humblest residue of the opus — as the diadem of the heart, making cordis purification the culminating moment of the entire alchemical synthesis rather than a preliminary moral condition.
von Franz, Marie-Louise, Aurora Consurgens: A Document Attributed to Thomas Aquinas on the Problem of Opposites in Alchemy, 1966thesis
The alchemists used the term corona or diadema cordis tui (diadem of thy heart), meaning by it a symbol of perfection.
Jung explicitly glosses diadema cordis tui as a symbol of psychic perfection, translating the monastic ideal of puritas cordis into the language of individuation and mandala symbolism.
The index entry in Jung's Collected Works Volume 3 confirms that diadema cordis tui is treated as a discrete technical concept meriting its own citation, placing it in direct proximity to the theme of individuation's culminating symbol.
Jung, C. G., Collected Works Volume 3: The Psychogenesis of Mental Disease, 1907supporting
when the very memory of such things is stirred, he nevertheless remains calm and at peace. Another sign of the presence of this state is the ability to pray without distraction.
This passage from the Praktikos describes the operative signs of apatheia — the Evagrian functional equivalent of puritas cordis — as tranquility under mnemonic provocation and undistracted prayer, establishing the classical ascetic framework on which depth-psychological readings depend.
The aim is to produce the unitary man (vir unus) who is without stain. This stain, according to the text, is not only the chemical impurity of the metal, but is called 'the greatest sin' (maximum delictum) and the 'noonday devil.'
Von Franz interprets the alchemical purification of the vir unus as a psychological analogue to puritas cordis, in which the 'stain' encompasses both moral impurity and the psychic shadow designated by theological tradition as the acedia-linked noonday devil.
von Franz, Marie-Louise, Aurora Consurgens: A Document Attributed to Thomas Aquinas on the Problem of Opposites in Alchemy, 1966supporting
The fourth is chastity, of which it is written: Whom when I love I am pure, (when I touch I am chaste); whose mother is a virgin and whose father hath not cohabited with her.
The Aurora Consurgens text enumerates chastity — a constituent virtue of puritas cordis in the monastic schema — as one of the five alchemical virtues necessary for the work, directly linking moral purity to the opus's conditions of possibility.
von Franz, Marie-Louise, Aurora Consurgens: A Document Attributed to Thomas Aquinas on the Problem of Opposites in Alchemy, 1966supporting
scito quod sapientiam istam habere non potes quousque mentem tuam Deo purifices, et sciat te Deus habere certum animum et creatori tuo fidelitatem.
The Alphidius citation quoted by von Franz stipulates that alchemical wisdom is inaccessible without the purification of the mind directed toward God, rendering cordis puritas a prerequisite of gnosis rather than merely a moral virtue.
von Franz, Marie-Louise, Aurora Consurgens: A Document Attributed to Thomas Aquinas on the Problem of Opposites in Alchemy, 1966supporting
a certain purification of things precedeth the work of perfect preparation, which by some is called cleansing, by some administration, by some rectification, by some ablution.
Von Franz documents the Pseudo-Aristotelian insistence that every stage of the alchemical work is preceded by a purificatio, providing structural parallel to the monastic doctrine that puritas cordis conditions rather than concludes the contemplative ascent.
von Franz, Marie-Louise, Aurora Consurgens: A Document Attributed to Thomas Aquinas on the Problem of Opposites in Alchemy, 1966supporting
we should therefore 'let the eye of the soul never rest from the watch over yourself' . . . Origen reads the scriptural 'unless you know yourself, O fair among women' allegorically.
Sharpe and Ure trace the examination-of-conscience tradition through monastic sources including Cassian, mapping the self-scrutiny practices that functionally constitute the pursuit of puritas cordis within both the philosophical and ascetic heritage.
Sharpe, Matthew and Ure, Michael, Philosophy as a Way of Life: History, Dimensions, Directions, 2021supporting
I shall be cleansed from the greatest sin, and from the noonday devil, for from the sole of my foot unto the crown of my head there is no soundness in me.
The Aurora Consurgens first-person speaker's cry for cleansing from 'the greatest sin' and the noonday devil — classical designations of acedia and moral corruption — establishes the apophatic ground from which puritas cordis is sought as complete somatic and spiritual healing.
von Franz, Marie-Louise, Aurora Consurgens: A Document Attributed to Thomas Aquinas on the Problem of Opposites in Alchemy, 1966supporting
Nicephoras, De custodia cordis; PG 147:948 A; Gregory Nazianzen, Oratio in sanctum baptisma; PG 36:412 C.
Hausherr's citation of the De custodia cordis tradition — the keeping or guarding of the heart — places puritas cordis within the broader hesychast discipline, where compunction (penthos) and vigilance are the affective instruments of cardiac purification.
Hausherr, Irénée, Penthos: The Doctrine of Compunction in the Christian East, 1944aside
The extension of God as the anima media natura into every individual creature means that there is a divine spark, the scintilla, indwelling even in dead matter, in utter darkness.
Jung's account of the scintilla as a divine spark distributed through matter provides the metaphysical basis on which the alchemical aspiration toward puritas cordis — the recovery and concentration of scattered light — becomes a cosmological as well as a moral and psychological project.
Jung, Carl Gustav, Psychology and Religion: West and East, 1958aside