In Jain cosmology, the "shape of the universe" (lokaDraft overviewLokaIn Jain cosmology, **Loka** refers to the structured, finite universe in which all embodied beings exist. It is not an infinite expanse but a carefully delineated cosmic domain described in canonical texts such as the *T…-rūpa) is a central doctrinal topic that connects metaphysics, ethics, and soteriology. The universe is understood as beginningless and uncreated, composed of eternal substances (dravyaDraft overviewDravyaIn Jain philosophy, **dravya** refers to the fundamental ontological category of “substance,” the basic building block of reality. Jain thinkers describe the universe as beginningless, eternal, and composed of six distin…) such as soul (jīva), matter (pudgalaDraft overviewPudgalaIn Jain philosophy, **pudgala** (often called *pudgalastikaya* when emphasizing its extension) is the fundamental category of matter and material energy. It is one of the six eternal substances (*ṣaḍ-dravya*) that consti…), space (ākāśa), the media of motion and rest (dharma, adharma), and time (kāla). Within infinite space, only a finite, inhabited region is called lokākāśa, the "space of the universe"; beyond it stretches alokākāśa, the uninhabited, infinite expanse. The discussion of "universe shape" in Jainism therefore concerns the finite lokākāśa, not the entirety of space.
Classical Jain texts describe lokākāśa as having a distinctive, highly structured form. It is often compared to a human figure standing with legs apart and hands on the waist (lokapuruṣa), or to an hourglass or three-bowl vessel (tri-śrava-saṃpuṭa). In side view, commentators liken it to one and a half mṛdaṅga drums placed together. This form is broad at the bottom, narrow in the middle, and broad again in the upper regions. The inhabited universe is vertically divided into three great realms: adho-lokaDraft overviewLokaIn Jain cosmology, **Loka** refers to the structured, finite universe in which all embodied beings exist. It is not an infinite expanse but a carefully delineated cosmic domain described in canonical texts such as the *T… (lower world, the hells), madhya-loka (middle world, the region of humans, animals, plants, and terrestrial bodies), and ūrdhva-loka (upper world, the heavens and, at the very top, the abode of liberated soulsDraft overviewLiberated soulsIn Jain thought, liberated souls—called *siddhas*—are beings who have completely transcended the cycle of birth, death, and rebirth (*saṃsāra*). Liberation (*mokṣa* or *nirvāṇa*) is achieved when all karmic matter has be…). The shape is not treated as a mere symbol but as a precise cosmographical map with fixed dimensions.
The finite universe is measured in enormous units called rajjuDraft overviewRajjuIn Jain cosmology and mathematical literature, "rajju" (also spelled "rijju") is an extremely large unit of distance used to express the vast dimensions of the universe (lokākāśa) and certain cosmological channels such a…. Textual traditions describe the height of lokākāśa as fourteen rajjus, with a constant width of seven rajjus from north to south. The lower world occupies almost seven rajjus in height, the middle world forms a narrow band at the "waist" of the cosmic figure, and the upper world rises through multiple heavenly tiers until it reaches the region just below the siddha-śilā, the "crest" where liberated soulsDraft overviewLiberated soulsIn Jain thought, liberated souls—called *siddhas*—are beings who have completely transcended the cycle of birth, death, and rebirth (*saṃsāra*). Liberation (*mokṣa* or *nirvāṇa*) is achieved when all karmic matter has be… abide. Detailed Digambara and Śvetāmbara cosmological treatises calculate the volume of the universe in cubic rajjus and specify how width changes at different heights—for example, one rajju wide at the base of the upper world, expanding to five rajjus around the Brahma-lokaDraft overviewLokaIn Jain cosmology, **Loka** refers to the structured, finite universe in which all embodied beings exist. It is not an infinite expanse but a carefully delineated cosmic domain described in canonical texts such as the *T… region, and narrowing again near the top.
Jain authors emphasize that this universe is self-regulating and not created or destroyed by any deity. Its shape and structure are considered eternal features of reality, even though the conditions within it—such as the cycles of time, the distribution of beings, and the moral climate—undergo vast periodic changes. The threefold vertical division into lower, middle, and upper worlds is closely tied to the ethical and spiritual journey of souls: beings fall into the lower realms through heavy demerit, wander through the middle realms in mixed conditions, or rise into the upper realms through meritDraft overviewMeritIn Jain thought, **merit** is most precisely discussed under the technical category of *puṇya*, a karmic influx that produces pleasant experiences, favorable circumstances, and opportunities conducive to spiritual progre…, and finally transcend the entire structure by attaining liberation and dwelling at the top of the universe beyond the reach of karmic bondage.
Cosmological diagrams such as the lokākāśa or lokapuruṣa are preserved in manuscripts, temple paintings, and stone carvings. They depict the hourglass or cosmic-man shape with labeled regions for hells, continentsDraft overviewContinentsIn Jain cosmology, “continents” refers not to the modern Earth-based classification (such as Asia or Africa), but to the vast, structured landmasses that form part of the Jain universe (loka). These landmasses are descri… and oceansDraft overviewOceansOceans are vast bodies of saline water that cover approximately 71% of Earth’s surface and play a central role in regulating climate, supporting biodiversity, and shaping geological and atmospheric processes. Modern ocea… of the middle world (including Jambūdvīpa and the surrounding rings), and the successive heavens of the upper world. These visual representations serve both as doctrinal summaries and as meditative aids, reminding practitioners that every action reverberates across a vast, ordered cosmos filled with living beings. While modern astronomyDraft overviewAstronomyIn Jain intellectual history, astronomy (often treated under *jyotiṣa*, *gaṇitāṅga*, and cosmological sections of canonical texts) is not a separate natural science in the modern sense but an integrated discipline combin… describes a physical universe with expanding space and galaxies, Jain cosmology focuses on the moral and spiritual geography of a finite, structured lokaDraft overviewLokaIn Jain cosmology, **Loka** refers to the structured, finite universe in which all embodied beings exist. It is not an infinite expanse but a carefully delineated cosmic domain described in canonical texts such as the *T… within infinite space, using its distinctive shape to express the pathways of bondage and liberation.
Different sectarian and scholastic traditions within Jainism—Digambara, Śvetāmbara Mūrtipūjaka, Sthānakavāsī, and Terāpanthī—accept the basic hourglass or cosmic-man shape of the universe, though they may differ in some numerical details, diagrammatic conventions, or interpretive emphasis. Technical treatises elaborate the geometry of the lokaDraft overviewLokaIn Jain cosmology, **Loka** refers to the structured, finite universe in which all embodied beings exist. It is not an infinite expanse but a carefully delineated cosmic domain described in canonical texts such as the *T…, while narrativeDraft overviewNarrativeIn Jain studies, the term “narrative” refers to the broad category of stories, accounts, and illustrative episodes used across Śvetāmbara, Digambara, and other Jain traditions to convey ethical principles, cosmological s… texts and sermons highlight its ethical implications. Across these traditions, the universe’s shape is not a topic of speculative curiosity alone; it is a framework for understanding where beings reside, how karma moves them, and why non-violence and restraint are necessary in a cosmos densely populated with life.