A yantra is a geometric diagram, drawn or engraved on metal, birch bark, or stone, that serves as the seat of a deity in Tantric worship. Where a mantra is the deity in sound, the yantra is the deity in form, and the two are used together: the mantra is recited to install the deity in the diagram, and the diagram gives the mind a fixed point to hold. In Vedic astrology, practitioners use yantras for the nine planets and for the deities who preside over them.
| Term | Meaning |
|---|---|
| Yantra | A diagram that holds a deity and the worshipper’s attention. |
| Bindu | The central point where the deity is invoked. |
| Trikoṇa | A triangle; in the Śrī Yantra, upward for Śiva and downward for Śakti. |
| Bhūpura | The outer square with four gates. |
| Bīja | A seed syllable written inside the figure. |
| Meru | The raised, tiered form of a yantra such as the Śrī Yantra. |
| Prāṇa pratiṣṭhā | The rite that installs the deity in the yantra. |
| Pañcadhātu | An alloy of five metals used for yantras and images. |
Sanskrit dictionaries, Monier-Williams among them, derive the word from the root yam, “to hold, restrain, or support”, with the suffix -tra, which forms the name of a tool. A yantra is literally an instrument for holding: it holds the deity in a defined space, and it holds the attention of the one who worships it. Unlike a painted image (mūrti), a yantra shows no face or limbs. The deity is present in the proportions, the seed syllables (bīja) written into the figure, and the worship given to it.
Most yantras are built from the same few parts, read from the centre outward:
| Part | Sanskrit | What it is | Source |
|---|---|---|---|
| Central point | Bindu | The point where the deity is invoked; the seed from which the figure unfolds | Tantric tradition |
| Triangles | Trikoṇa | Upward triangles for Śiva, downward triangles for Śakti, in the Śrī Yantra | Saundaryalaharī, verse 11 |
| Circles | Vṛtta | Rings that enclose and separate the inner and outer figures | Tantric tradition |
| Lotus petals | Padma or dala | Rings of 8, 16, or more petals, each seating an attendant deity | Tantric tradition |
| Outer square | Bhūpura | The earthly enclosure, with four gates facing the four directions | Tantric tradition |
| Seed syllables | Bīja | Letters or syllables written inside the figure | Tantric tradition |
| Numbers | Aṅka | Numbers set in a square grid, as in the planetary yantras | Common practice |
In the Tantric traditions of worship, a yantra is consecrated with its mantra before it is worshipped; without that rite, it is treated as a drawing rather than a seat of the deity. That is why the installation rite matters as much as the drawing, and why a yantra bought ready-made is consecrated before it is placed in the shrine.
Deity: Lalitā Tripurasundarī
Used for: worship of the Goddess; prosperity and inner practice
Nine interlocking triangles around a central point, enclosed by two lotus rings, three circles, and a square with four gates. It is one of the best-known yantras, and widely installed in household shrines. The section below explains its design.
Deity: the nine planets
Used for: steadying several difficult periods at once
Nine number squares, one for each planet, set in a single grid. Practitioners install it when no single planet stands out in the chart, or when several planetary periods and transits press at the same time.
Deity: Mahālakṣmī
Used for: worship for household prosperity
The Goddess’s seed syllable śrīṁ sits at the centre of lotus petals and a square enclosure. It is installed most often at Dīpāvalī and worshipped with her mantra on Fridays.
Deity: Kubera, keeper of the gods’ treasury
Used for: worship for guarding household wealth
Usually drawn as a number square. In devotional tradition, Lakṣmī brings wealth and Kubera guards it, so households often worship the two yantras together.
Deity: Sarasvatī
Used for: study, speech, music, and the arts
Kept on a student’s desk or in a music room, and worshipped on Vasanta Pañcamī, the festival of Sarasvatī. Practitioners link it with Mercury and Jupiter, the planets of learning.
Deity: Śiva as the conqueror of death
Used for: protection during difficult periods and illness in the family
Worshipped with the Mahāmṛtyuñjaya mantra of the Ṛgveda (7.59.12). It supports prayer for health; it is never a replacement for medical care.
Deity: Hanumān
Used for: courage and protection, often during Saturn and Mars periods
Worshipped on Tuesdays and Saturdays with the Hanumān Cālīsā. Practitioners turn to it during sāḍe sātī, Saturn’s seven-and-a-half-year passage over the Moon.
Deity: Vāstu Puruṣa, the spirit of the site
Used for: a home or office with planning faults that cannot be rebuilt
Practitioners install it where a kitchen, entrance, or water tank sits in an unfavourable direction and moving it is not practical. It is a remedy of worship, not a substitute for sound planning; see our Vastu Shastra guide.
Deity: Lakṣmī and Gaṇeśa together
Used for: a shop, office, or new business
Placed at the cash counter or the owner’s desk, and worshipped at the opening of a business or the start of the financial year.
Shops also sell many yantras with names of their own, such as the Sarva Karya Siddhi, Santan Gopal, and Kaal Sarp yantras. Choose any of them the same way as the nine above: by the deity it serves and the need your chart actually shows, not by the promise on the packet.
The Śrī Yantra, also called the Śrī Cakra, is the seat of the Goddess Lalitā Tripurasundarī. At its heart are nine large triangles. The Saundaryalaharī, the hymn to the Goddess attributed to Śaṅkarācārya, names them in its eleventh verse: four of Śiva (śrīkaṇṭha) and five of his consort, the Śakti (śivayuvati). Śiva’s four point upward and the Goddess’s five point downward, and where they cross they cut the space into smaller triangles.
Count those smaller triangles from the centre outward and you find one central triangle, then rings of 8, 10, 10, and 14: forty-three in all. Around them sit a lotus of eight petals, a lotus of sixteen, three circles, and the square enclosure with its four gates. The same verse of the Saundaryalaharī counts the corners of the Goddess’s dwelling as forty-four; a common explanation reaches that number by counting the central point (bindu) together with the forty-three triangles. The difference is one of counting, not of design.
The Śrī Yantra also comes in a raised, three-dimensional form, the Meru, in which each ring of triangles and petals rises above the one outside it. Flat or raised, the figure is the same; the Meru is simply the plan built up into a mountain.
For the nine planets, practitioners draw a three-by-three square of numbers in which every row, column, and diagonal adds up to the same total. The Sun’s square uses the numbers 1 to 9 and totals 15; each planet after it starts one number higher, so its total rises by three. The squares are one customary arrangement of planetary worship, and some lineages draw them differently; the classical astrology texts give each planet a presiding deity instead. The weekdays below are the usual choice, not a fixed rule.
| Planet | Square total | Presiding deity (Bṛhat Parāśara Horā Śāstra 3.18) | Day usually chosen |
|---|---|---|---|
| Sun | 15 | Agni | Sunday |
| Moon | 18 | Ambu (the waters, Varuṇa) | Monday |
| Mars | 21 | Kārttikeya | Tuesday |
| Mercury | 24 | Viṣṇu | Wednesday |
| Jupiter | 27 | Indra | Thursday |
| Venus | 30 | Śacī (Indrāṇī) | Friday |
| Saturn | 33 | Brahmā | Saturday |
| Rahu | 36 | Not named in that verse; Durgā by common practice | Saturday |
| Ketu | 39 | Not named in that verse; Gaṇeśa by common practice | Tuesday or Saturday |
A single planetary yantra suits a single planet that clearly needs attention in your chart. Where several do, practitioners install the Navagraha yantra, which holds all nine squares together.
A yantra is chosen in one of two ways, and it helps to know which you are doing.
The Śrī, Mahālakṣmī, Sarasvatī, or Hanumān yantra serves the worship of a deity you already turn to. These suit anyone, because the yantra follows your devotion rather than your chart.
A planetary yantra supports a planet your chart calls for. As with gems and rudraksha, the planet that rules the ascendant, the fifth, or the ninth house is an ally to strengthen; a planet that rules the sixth, eighth, or twelfth house is usually approached through its deity’s worship rather than strengthened. The planetary period (daśā) you are running shows which planet needs attention now.
A yantra does not need to be costly, and one well-tended yantra serves better than several neglected ones. For the same reasoning applied to beads and gems, see the Rudraksha guide and Gemstones in Vedic Astrology.
Installing a yantra means bringing the deity into it, a rite called prāṇa pratiṣṭhā. Procedures differ by deity, lineage, and material, and your teacher’s procedure, where you have one, comes first. The steps below are one common household practice.
Yantras are made in copper, brass, silver, gold, crystal, and five-metal alloy (pañcadhātu), or written on birch bark. Copper is the common household choice. The material matters less than two things you can check yourself:
A flat plate suits a wall shrine or a desk. A raised Meru suits a home shrine where it can be worshipped from all sides. Neither is “stronger”; choose the one you will look after.
A yantra serves a deity, and through that deity a need your chart actually shows. If you are unsure which planet or deity to turn to in your current dasha, or whether your home calls for a Vastu remedy at all, AstroShala consultations read the whole chart before suggesting any remedy.
Yes, for the yantras of household worship. The Śrī, Mahālakṣmī, Sarasvatī, Gaṇeśa, and planetary yantras are installed in homes everywhere. Requirements vary between traditions, and yantras of fierce deities are traditionally installed only under a teacher’s guidance.
Common household practice places it in the north-east or east of the room, on a clean raised surface. Keep it at or above heart height when you sit before it, and away from bathrooms and shoe racks.
In practitioners’ view, not by age but by neglect. The engraved figure does not change; what keeps it an object of worship is regular cleaning and daily offering.
Practitioners use it where rebuilding is not practical. It is a remedy of worship, best combined with whatever practical changes the layout allows.
Only if a full reading of your chart calls for one. Kāla Sarpa is a modern and much-debated combination, and astrologers disagree on whether it exists at all. Never buy a yantra or a ritual out of fear.
Yes. Both names describe the same figure of nine interlocking triangles; Śrī Cakra is the name more common in the Tantric texts of the Goddess.
Yantras are used in traditional devotional and astrological practice. They are not a treatment for any illness and not a substitute for medical, financial, or legal advice.
