There are twelve astrological ages corresponding to the twelve zodiacal signs in western astrology. B.O.T.A. teaches esoteric psychology, occult tarot, Hermetic Qabalah, astrology, and meditation. The Hindu calendar is also important to the practice of Hindu astrology and zodiac system. Ayanamsa systems are used in both Vedic and Western sidereal astrology. Most astrologers practicing Vedic astrology (Jyotish) only use the traditional rulership system. Surya is one of the twelve heavenly houses in the zodiac system of Hindu astrology. A short story about an astrologer who knows nothing about stars or astrology. Uraniborg was a place for the study of astronomy, meteorology, astrology, and alchemy. Yeats had a lifelong interest in mysticism, spiritualism, occultism and astrology. There he acquired a deep interest in astronomy, astrology, and magic. Catherine herself had been educated in astrology and astronomy. The distinction between astrology and astronomy was not entirely clear. Some touch upon alchemy, astrology, and related concepts. The "hermetic tradition" consequently refers to alchemy, magic, astrology, and related subjects. He said that he felt a deep connection with Hindu spirituality and Indian astrology.