The word's field
Sakīna belongs to the root s-k-n, whose primary sense is to be still, to settle, to come to rest. From it Arabic draws sakana "to dwell, to grow calm," maskan "a dwelling place," and sakīn "a knife" — the tool that stills a living thing. Across this family the governing image is motion arrested: a body that ceases to move, a heart that ceases to be agitated, a place where one settles and stays. Sakīna is the noun of that stillness raised to a spiritual register. It names not an ordinary quiet but a tranquility that descends from above, a composure granted rather than achieved.
In Quranic usage the word is bound to a single recurring verb: anzala, to send down. Sakīna is never something the believer manufactures; it is something poured into the heart from outside it, in a moment of fear or trial, so that the trembling steadies. The commentarial tradition reads this stillness as a gift of reassurance, the settling of a heart that had been shaken by battle, exile, or doubt, and later Sufi writing takes the term further inward — treating sakīna as a station of the soul in which agitation gives way to a peace that the world cannot disturb. The lexical tradition also notes the word's kinship with the Hebrew shekhinah, the indwelling presence of God that rests upon a place or a people; the two words share the root of dwelling and settling, and the Quranic sakīna carries something of that older sense of a divine presence come to rest among the faithful.
In the corpus
The Logoi corpus for this wing is the complete Quran, indexed as a single work. Within it sakīna occurs 6 times, and all 6 occurrences fall in that one work — the entire attested career of the word, as our record holds it, sits inside scripture rather than being scattered across a wider literature.
The distribution is concentrated. Half of the occurrences cluster in a single sura, al-Fatḥ (sura 48), where the word appears three times in close succession; a second pair falls in al-Tawba (sura 9), and a single instance opens the pattern in al-Baqara (sura 2). Six occurrences in one work is a small figure in absolute terms, but the clustering is the meaningful fact: sakīna is not a word scattered evenly through the text. It gathers at moments of crisis and deliverance, and the concentration in sura 48 marks that sura as the word's center of gravity.
Canonical moments
The word's first appearance sets the terms for all that follow. In The Quran 2:248 the sakīna is carried within the ark that comes to the people as a sign of true kingship — a tranquility housed in a sacred vessel and borne into the community, so that the word enters the text already joined to the image of a divine presence come to rest among a people. This is the occurrence that most clearly echoes the older sense of an indwelling stillness.
The densest cluster stands in sura 48. In The Quran 48:4 the sakīna is sent down into the hearts of the believers so that faith may increase upon faith; the stillness is not the end of striving but the ground on which further trust is built. The same verb of descent governs The Quran 48:18, where the tranquility comes down upon those who pledge their loyalty under the tree, sealing a covenant with an interior calm rather than an outward reward. The Quran 48:26 completes the pattern by setting sakīna against its opposite: where the disbelievers are filled with the hot partisanship of the age, the believers receive the settling stillness — the word is defined here by contrast with agitation, exactly as the root s-k-n would predict.
The pair in sura 9 places the word at a moment of extremity. In The Quran 9:40 the sakīna descends upon the Prophet in the cave, in flight and in danger, when two are pursued and one says to the other that God is with them; the stillness arrives precisely where fear would be greatest. The Quran 9:26 sends the same tranquility down upon the Prophet and the faithful after a reverse in battle, steadying those whom fear had scattered. Across all six loci the grammar holds: sakīna is sent down, into hearts, at the point of trial.
The word's world
Sakīna names the settled heart, and in doing so it stands beside the other traditions' words for the inner seat where calm and disturbance are felt. Its nearest kin within the Arabic wing is qalb, the heart that is the very organ sakīna descends into; where qalb names the seat, sakīna names the peace that comes to rest there. It stands in a natural pair with sadr, the breast that God opens or constricts, since the tranquility that settles the heart is the same gift that expands the chest. The word also completes the Quranic vocabulary of divine gift alongside rahma, the mercy sent down upon the faithful, and it is often through the discipline of dhikr, the remembrance of God, that later tradition holds the heart open to receive it.
Beyond its own wing, sakīna answers to the Hebrew lēb, the leb that in the older scripture is the whole inner person, mind and will and feeling together, and which trembles or is steadied exactly as the Quranic heart is. It resonates too with the Greek psyche, the breath-soul that classical thought watched for its motions of fear and calm. What sets sakīna apart is direction: it is not a faculty native to the person but a stillness given from above, sent down into the heart at the moment it most needs to be settled — a peace that arrives, in the corpus, precisely where the believer is most afraid.
Grounding: corpus figures and citations from the live Logoi corpus record (receipt soul-word-journey-v0). Cross-references: qalb, sadr, rahma, dhikr, psyche.