The word's field
Citta is a past participle turned noun, formed from the root cit, to perceive, to observe, to be aware. Its plainest sense is thought or the thinking that has taken shape, and in classical usage the word names the mind considered as the faculty of attention rather than as the abstract knower. Where manas is the coordinating instrument that gathers the senses and buddhi the discriminating intellect that decides, citta tends to name the mind in its activity of noticing and dwelling — the attention that fixes on an object, holds it, or drifts from it. The three overlap in the older texts, but the semantic center of citta is the settled or unsettled quality of awareness itself.
In Upanishadic usage the word belongs to the analysis of the inner instruments, taking its place among the faculties through which a person perceives, intends, and knows. The teaching tradition that catalogues these faculties treats citta as a station in the ascent from the outer senses toward the ground of awareness, one rung in a graded series where each power rests on a subtler one beneath it. Later, in the systematic yoga tradition, citta becomes the technical term for the whole field of mental activity whose stilling is the aim of practice, so that the discipline is defined outright as the settling of the movements of citta. The corpus indexed here stands earlier than that systematization, but the seed is already present: the mind that must be steadied is the mind this word names.
In the corpus
Citta occurs 22 times across four indexed works of this wing, heavily weighted toward a single title. The Chandogya Upanisad carries 15 occurrences, more than two-thirds of the total, and the remainder is thin: the Bhagavad Gita and the Prasna Upanisad hold 3 each, and the Brhadaranyaka Upanisad 1. The word is, in this corpus, primarily a Chandogya word, and secondarily a word of the Gita's chapters on meditative discipline.
That concentration is legible against what each text is doing. The Chandogya's sustained instruction on the hierarchy of the inner powers gives the word repeated occasion, since citta is one of the named faculties in that graded teaching, and the Gita's occurrences fall where the text turns to the practice of steadying the mind. The single Brhadaranyaka occurrence and the Prasna's three are too few to carry a distribution of their own, but they confirm that the word is at home across the principal Upanishads. Because the source licenses for this wing do not permit public display of the running text, the receipt links below locate each passage rather than reproduce it: the pointer marks where the word stands, and the reader is directed to the passage in an edition of their own.
Canonical moments
At Bhagavad Gita 6.18 the word stands within the chapter's instruction on seated meditation, where the disciplined citta, withdrawn from craving and come to rest in itself, marks the practitioner who has reached union. The locus matters for citta because it shows the word naming precisely the mind that has been gathered — attention no longer scattered across objects but settled. A few verses on, Bhagavad Gita 6.20 returns to the same field, the state in which thought comes to stillness and the self beholds the self and is content within it. Together the two loci give the Gita's picture of citta as the faculty whose quieting is the substance of the meditative attainment.
At Bhagavad Gita 12.9 the word appears in the counsel on devotion, where one unable to hold the mind steadily fixed is told to seek that fixity through repeated practice. Here citta is the attention that will not stay of its own accord and must be trained toward its object by discipline, and the verse states plainly the problem the whole meditative vocabulary exists to address: the mind wanders, and steadiness is won, not given.
The densest concentration in the audited record falls in the Chandogya Upanisad's seventh chapter, where Chandogya Upanisad 7.5 sits within Sanatkumara's graded instruction to Narada on the powers of the inner life. In that teaching each faculty is declared greater than the one before and then surpassed in turn, and citta holds a place in the ascending series — greater than what precedes it, yet pointing beyond toward a subtler ground. The locus fixes citta not as the summit of the inner life but as a station within it, a real power that is nonetheless not the last word. The neighboring verses at Chandogya Upanisad 7.26 close that movement, gathering the graded powers back toward the single reality on which they all depend.
The word's world
Citta sits among the inner-instrument words of its own tradition and is best read beside them. It stands next to manas, the coordinating mind that marshals the senses, and buddhi, the discriminating intellect; where those name the mind's gathering and deciding, citta names its attending and dwelling. Behind all three stands atman, the self the graded teaching reaches toward past every faculty, so that citta, however refined, remains an instrument and not the ground.
Across the traditions the nearest kin is the Buddhist citta, the Pali heart-mind of the suttas, which shares the etymology and the same practical burden — the mind that must be watched, trained, and brought to stillness. The two words are, at root, one word inherited by two disciplines of attention. Further afield the Chinese xin, the heart-mind whose emptying the Daoist practice requires, names a comparable object of discipline, though it fuses feeling and thought more tightly than the Indian analysis, which distributes the inner life across distinct faculties. In the Latin field the nearest counterpart is mens, the thinking principle whose steadiness the meditative traditions everywhere seek, though it carries none of citta's bond to a graded discipline of attention. What sets citta apart is that bond to practice: less a definition of the mind than a name for the mind under training, the attention whose gathering is the work itself.
Grounding: corpus figures and citations from the live Logoi corpus record (receipt soul-word-journey-v0). Cross-references: manas, buddhi, atman, citta, xin, mens.