Definition - What does Jyotisha mean?
Jyotisha is traditional Hindu astrology, and is considered to be one of the oldest systems of astrology in the world. It is one of the six disciplines of the Vedanga and is discussed within the "Rig Veda." Yogis may wish to study Jyotisha as it can assist with understanding the effects of the subtle powers of the universe.
In Sanskrit, jyotisha means “science of light” or “light, heavenly body.”
Yogapedia explains Jyotisha
Jyotisha is also known as Hindu, Indian and/or Vedic astrology. Although it is found outlined in the "Rig Veda," there is evidence of its practice prior to documentation in the Hindu scriptures. Jyotisha astrologers and practitioners believe in the spiritual nature of man and the journey to discover the true self, and that astrological bodies and powers of the universe can help predict and inform that journey.
According to this belief system, the sun projects intelligence and spirituality on the earth; the moon is vital to all creatures in that it governs fertility and influences emotional nature; and the gravitational pull of other planets influences the earth and its inhabitants subtly. Vedic and Western astrology have some similarities, including the 12 signs of the zodiac, but Vedic astrology emphasizes the rising sign at the precise moment of birth rather than the 30-day sun sign. Also, the difference between the sun signs in the two systems of astrology is said to be 24 degrees, meaning that one might identify with a different constellation.
Yogis on their journey to Self-realization may wish to incorporate jyotisha as a guide on their path.