Chandra yogas are the combinations reckoned from the Moon rather than from the Ascendant. Jyotisha treats the Moon as a second reference point, the chandra lagna, and reads the whole chart from it in parallel with the reading from the rising sign, on the ground that the Moon signifies the mind and the immediate texture of experience where the Ascendant signifies the body and the life as a whole. The best known members of the class are the flanking yogas, sunapha, anapha, durudhara and their negative kemadruma, together with adhi yoga and gaja kesari. The practice has no close western equivalent; Hellenistic astrology has the Lot of Fortune, which is derived from the Moon and can serve as an alternative reference, but it does not run a full second chart from the lunar position as Indian practice does.
The four flanking yogas differ by exactly which houses from the Moon hold other planets: Sunapha occurs when a planet other than the Sun sits in the second house from the Moon, Anapha when one sits in the twelfth from the Moon, and Durudhara when planets occupy both; Phaladeepika describes the results in traditional, formulaic terms, Sunapha natives as self-made and wise, Anapha natives as powerful and well regarded, Durudhara natives as prosperous and well attended. Kemadruma, the negative case, occurs when neither house holds a planet, and the tradition holds it can be weakened or cancelled if the Moon itself sits in a kendra from the Ascendant or receives a benefic aspect, conditions later commentators treat as softening what is otherwise counted among the more feared combinations in the system.