A graha— literally "seizer" — is a point on the ecliptic that takes hold of consciousness as it transits. The classical system uses nine: the seven visible luminaries (Sun, Moon, Mars, Mercury, Jupiter, Venus, Saturn) and the two lunar nodes (Rāhu and Ketu). The nodes are not physical bodies — they are the points where the Moon's orbital plane crosses the ecliptic — but they act as grahas because eclipses happen when Sun, Moon, and node align.
Core attributes per graha
| Graha | Sanskrit | Rules | Exalted | Debilitated | Moolatrikona |
|---|---|---|---|---|---|
| Sun | Sūrya | Leo | Aries (10°) | Libra (10°) | Leo 0–20° |
| Moon | Chandra | Cancer | Taurus (3°) | Scorpio (3°) | Taurus 3–27° |
| Mars | Maṅgala | Aries, Scorpio | Capricorn (28°) | Cancer (28°) | Aries 0–12° |
| Mercury | Budha | Gemini, Virgo | Virgo (15°) | Pisces (15°) | Virgo 15–20° |
| Jupiter | Guru | Sagittarius, Pisces | Cancer (5°) | Capricorn (5°) | Sagittarius 0–10° |
| Venus | Śukra | Taurus, Libra | Pisces (27°) | Virgo (27°) | Libra 0–15° |
| Saturn | Śani | Capricorn, Aquarius | Libra (20°) | Aries (20°) | Aquarius 0–20° |
| Rāhu | — | (Aquarius / Virgo — disputed) | Taurus / Gemini | Scorpio / Sagittarius | — |
| Ketu | — | (Scorpio / Pisces — disputed) | Scorpio / Sagittarius | Taurus / Gemini | — |
The seven luminaries
Sun — Sūrya · ātman, the soul
King of the grahas. Signifies the soul, the father, authority, vitality, bone structure, and the capacity to command. Rules Leo, exalted in Aries, debilitated in Libra. The Sun "burns" planets within 6° of it — a condition called astaṅgatā or combustion — which suppresses their expressive capacity without destroying their natural effects. A combust planet does its job but quietly; it may also indicate internalization of what that planet represents.
Moon — Chandra · manas, the mind
Queen of the grahas. Signifies mind, mother, public, emotion, moisture, and memory. Rules Cancer, exalted in Taurus. The Moon's nakshatra placement at birth seeds the entire Vimshottari dasha sequence — it therefore has timing authority no other graha possesses. The Moon is considered strong when full (away from the Sun, near opposition) and weak when new (close to the Sun). This pakṣa bala is one of the components of shadbala.
Mars — Maṅgala · commander
Signifies courage, younger siblings, property, real estate, blood, surgery, and conflict. Rules Aries and Scorpio, exalted in Capricorn. Mars casts special aspects on the 4th and 8th houses from itself — unlike the symmetric 7th aspect that all planets share. This asymmetry means Mars often strikes locations far from where it sits, which is classical explanation for its role in accident and dispute analysis.
Mercury — Budha · prince
Signifies speech, intellect, skill, commerce, and friendship. Rules Gemini and Virgo — uniquely, Mercury is the only planet exalted in its own rulership sign (Virgo 15°). Mercury's defining quality is neutrality: it takes on the colouration of any graha it associates with. Mercury with Saturn is cold and disciplined; with Jupiter, wise; with Rahu, scheming; with Mars, sharp-tongued. It rarely acts alone.
Jupiter — Guru · teacher, counsellor
The great benefic. Signifies wisdom, children, dharma, wealth, expansion, and grace. Rules Sagittarius and Pisces, exalted in Cancer. Jupiter's aspect is the most generous in the classical system — it aspects the 5th, 7th, and 9th from itself, casting dharma across a wide arc. A Jupiter aspect on the ascendant, the 5th house, or the 9th is one of the most reliable single indicators of a protected life.
Venus — Śukra · teacher of the demons
Signifies relationships, art, luxury, vehicles, semen, and refinement. Rules Taurus and Libra, exalted in Pisces. In the classical myth Venus is Śukrācārya, teacher of the demons — not because it is demonic, but because it teaches mastery through enjoyment, which is a harder path than teaching through restraint. Venus is the karaka for the spouse in a male chart; for a female chart that role falls to Jupiter (the husband-karaka) while Venus signifies the physical quality of the spouse.
Saturn — Śani · slow reckoner
Signifies discipline, delay, service, longevity, old age, and karma ripened. Rules Capricorn and Aquarius, exalted in Libra. Saturn is slow (one sign roughly every two and a half years) and thorough — its transits produce durable outcomes: the 7½-year Sāḍe Sātī over the Moon is the most-feared Saturn cycle in Vedic astrology practice. Saturn's special aspects are the 3rd and 10th from itself. A well-placed Saturn produces endurance, authority earned over time, and depth of expertise.
The shadow planets — Rāhu and Ketu
The lunar nodes are the intersection points of the Moon's orbit with the ecliptic. They always travel in opposition (exactly 180° apart) and are always retrograde (their motion opposes the grahas because they are a geometric artifact, not a body). Classical mythology explains them as the two halves of a demon who drank immortality nectar and was cut in half — Rāhu, the head, still seeks indefinitely; Ketu, the body, has already arrived and therefore detaches.
Rāhu — the amplifier
Represents worldly desire without saturation. Where Rāhu sits, the native wants without limit — profession, relationships, substances, recognition. Rāhu delivers dramatically when it does, and its dasha (18 years) is often the most transformative period of a life. It has no physical home but behaves well in Aquarius, Taurus, Gemini, and Virgo; poorly in Scorpio, Leo.
Ketu — the releaser
Represents mastery from past lives. Where Ketu sits, the native arrives already skilled and therefore bored. Ketu gives flashes of insight, dispassion, and mystical perception. It detaches from what it touches — a Ketu in the 10th rarely attaches to career identity even when professionally accomplished.
Aspects (dṛṣṭi)
All planets aspect the 7th house from themselves. Three planets have additional special aspects:
| Graha | Special aspects (in addition to 7th) |
|---|---|
| Mars | 4th and 8th |
| Jupiter | 5th and 9th |
| Saturn | 3rd and 10th |
| Rāhu and Ketu | 5th, 7th, 9th (disputed in classical tradition) |
These asymmetric aspects are load-bearing. A planet in the 1st house with Saturn in the 10th is "aspected by Saturn" — Saturn's 10th-aspect lands on the ascendant. This is why one cannot read a house merely by what sits in it; one must also read what sees it.
Relationships (maitrī)
Each planet has natural friends, neutrals, and enemies. The classical natural rulership:
| Planet | Friends | Neutrals | Enemies |
|---|---|---|---|
| Sun | Moon, Mars, Jupiter | Mercury | Venus, Saturn |
| Moon | Sun, Mercury | Mars, Jupiter, Venus, Saturn | — |
| Mars | Sun, Moon, Jupiter | Venus, Saturn | Mercury |
| Mercury | Sun, Venus | Mars, Jupiter, Saturn | Moon |
| Jupiter | Sun, Moon, Mars | Saturn | Mercury, Venus |
| Venus | Mercury, Saturn | Mars, Jupiter | Sun, Moon |
| Saturn | Mercury, Venus | Jupiter | Sun, Moon, Mars |
Beyond natural friendships, there is tātkālika (temporary) friendship derived from houses away, and pañcadhā (five-fold) friendship combining both. A planet in a great-friend sign is as functionally strong as one in its own sign; in a great-enemy sign, as weak as in debilitation.