Dashas: how Vedic astrology tells time

One of the features that most distinguishes Vedic astrology is its approach to timing. Alongside transits, the movement of planets now, it uses planetary periods called dashas, which divide your life into chapters ruled by different planets.

The most common scheme is the Vimshottari dasha, a cycle of one hundred and twenty years. It assigns each of nine bodies a span of years, and you live through them in a fixed sequence, one major period after another.

The lengths are set by tradition. Ketu rules for seven years, Venus for twenty, the Sun for six, the Moon for ten, Mars for seven, Rahu for eighteen, Jupiter for sixteen, Saturn for nineteen, and Mercury for seventeen. Add them and they total exactly one hundred and twenty.

Where you begin in the cycle is decided by the Moon. Specifically, the nakshatra, or lunar mansion, the Moon occupied at your birth determines which planetary period you are born into and how much of it remains. This is one reason an accurate birth time is so important in Vedic work.

Each major period, called a mahadasha, is subdivided into minor periods, called antardashas, ruled by the same nine planets in proportion. So within a long Saturn period you might pass through a Saturn-Mercury phase, then Saturn-Ketu, and so on, each with its own flavour.

The idea is that a planet tends to deliver its results, for better or worse, during its own periods. A well-placed, strong planet may bring its best themes forward in its dasha, while a stressed one may make its period more testing.

This gives the astrologer a second clock. Transits describe the weather outside, the same for everyone at a given moment, while dashas describe the season you personally are in, unique to your chart. Read together they are more informative than either alone.

For a newcomer, the practical takeaway is simple. If a Vedic astrologer refers to the period you are running, they mean your current dasha, and they are reading the chapter of your chart that is open right now rather than just the sky today.