Planetary combinations
In Vedic astrology, a Yoga is a combination of planets, signs and houses that forms a recognized pattern in a birth chart. The Sanskrit word means union. Classical texts describe hundreds of Yogas, each with a name, a rule for how it forms and a result it is said to give. Some are linked to wealth or fame, some to learning or spiritual interest, and some to hardship.
Do not confuse these with the Yoga that is part of the daily Panchang, nor with the physical practice of yoga. They share a word but not a meaning. This page is about chart Yogas. For the daily kind, see What is Yoga in Panchang?.
How a Yoga forms
A Yoga usually depends on one of three things. The first is a link between two planets, by conjunction or aspect. The second is the placement of a planet in a house or sign, such as a ruling planet in its own sign. The third is a relationship between the lords of certain houses. When the rule is met within the chart, the Yoga is said to be present.
A Yoga also has strength. Astrologers ask whether the planets involved are strong, whether they are in their own or exalted signs, whether they are combust or weak, and whether other planets support or block the pattern. A Yoga formed by weak planets is considered weak, and one that is cancelled by an opposite factor may give little.
Main families of Yogas
Raja Yogas. Raja means king. They form when the lord of an angle, houses 1, 4, 7 or 10, links with the lord of a trine, houses 1, 5 or 9. These are said to give status, influence and success in public life. They are the best known family, and many charts show at least one.
Dhana Yogas. Dhana means wealth. They form when the lords of houses tied to money, such as the second, fifth, ninth and eleventh, link up. They are said to give financial gain, but results depend on the Dasha periods.
Pancha Mahapurusha Yogas. Five Yogas that form when Mars, Mercury, Jupiter, Venus or Saturn sits in its own or exalted sign in an angle from the Lagna. They are named Ruchaka for Mars, Bhadra for Mercury, Hamsa for Jupiter, Malavya for Venus and Shasha for Saturn. Each is said to give a distinct kind of excellence, such as courage, intellect, wisdom, charm or discipline.
Chandra Yogas. Formed by the Moon and its neighbors. Gajakesari Yoga arises when Jupiter is in an angle from the Moon, and it is said to give reputation and good sense. Sunapha, Anapha and Durudhara Yogas depend on planets in the houses next to the Moon, and Kemadruma Yoga arises when the Moon stands alone with no planet near it.
Surya Yogas. Formed by the Sun and its neighbors. Budhaditya Yoga arises when the Sun and Mercury are in the same sign. Because Mercury is always close to the Sun, it is very common and gives little weight by itself.
Viparita Raja Yoga. Formed when the lords of the difficult houses, 6, 8 and 12, are placed in those houses. The idea is that a loss turns into a gain, and success comes after difficulty.
Neecha Bhanga Raja Yoga. Formed when a weak planet has its weakness cancelled, for example when the ruler of its sign is in an angle. It is said to turn an early challenge into later strength.
Difficult Yogas
Texts also describe Yogas that are linked with trouble. Kemadruma Yoga is said to bring loneliness and instability of mind, though it has many cancellations. Grahan Yoga is formed when the Sun or Moon is close to Rahu or Ketu, and it is linked with eclipses. Daridra Yoga is said to bring money difficulty. Astrologers treat these with care, because nearly every chart has some such pattern and many are cancelled by other factors.
How Yogas are used
An astrologer looks for Yogas as part of a full reading. They are used to describe the talents and themes of a person, and then read in time through the Dasha. A Raja Yoga, for example, is said to give its best results during the period of one of the planets that form it. See Vimshottari Dasha.
Many online reports list a long set of Yogas automatically. Such lists are often padded, because a software rule can match a Yoga on its strict wording even where its real strength is weak. A shorter list that names the three or four strongest patterns is usually more honest and more useful.
A beginner reading order
First, learn the houses and the nine Grahas. Second, know which houses are angles and which are trines. Third, note the planets in their own or exalted signs. Only then look at the named Yogas. Finally, check whether the planets involved are strong and whether the Dasha supports them. A guide to the whole sequence is on the page How to read a Vedic chart.
A word of balance
Scientific studies have not found that planetary combinations predict wealth, status or character. Yogas belong to a long tradition, and many people enjoy them as a symbolic language. Be wary of a reading that promises a fortune because of a Yoga, or that sells a costly remedy for a difficult one. A chart does not decide a life. Choices and circumstances matter far more.