17. The Joshi’s calculations.
The Joshi calculates auspicious[17] seasons by a consideration of the sun’s zodiacal sign, the moon’s nakshatra or daily mansion, and other rules. From the monthly zodiacal signs and daily nakshatras in which children are born, as recorded in their horoscopes, he calculates whether their marriage will be auspicious. Thus the zodiacal signs are supposed to be divided among the four castes, Pisces, Cancer and Scorpio belonging to the Brāhman; Aries, Leo and Sagittarius to the Kshatriya; Taurus, Virgo and Capricorn to the Vaishya; and Gemini, Libra and Aquarius to the Sūdra. If the boy and girl were born under any of the three signs of the same caste it is a happy conjunction. If the boy’s sign was of a caste superior to the girl’s, it is suitable, but if the girl’s sign is of a superior caste to the boy’s it is an omen that she will rule the household; and though the marriage may take place, certain ceremonies should be performed to obviate this effect. There is also a division of the zodiacal signs according to their nature. Thus Virgo, Libra, Gemini, Aquarius and half of Sagittarius are considered to be of the nature of man, or formed by him; Aries, Taurus, half of Sagittarius and half of Capricorn are of the nature of animals; Cancer, Pisces and half of Capricorn are of a watery nature; Leo is of the desert or wild nature; and Scorpio is of the nature of insects. If the boy and girl were both born under signs of the same nature their marriage will be auspicious, but if they were born under signs of different natures, they will share only half the blessings and comforts of the marriage state, and may be visited by strife, enmity, misery or distress. As Leo and Scorpio are looked upon as being enemies, evil consequences are much dreaded from the marriage of a couple born under these signs. There are also numerous rules regarding the nakshatras or mansions of the moon and days of the week under which the boy and girl were born, but these need not be reproduced. If on the day of the wedding the sun or any of the planets passes from one zodiacal sign to another, the wedding must be delayed for a certain number of gharis or periods of twenty-four minutes, the number varying for each planet. The hours of the day are severally appointed to the seven planets and the twelve zodiacal signs, and the period of ascendancy of a sign is known as lagan; this name is also given to the paper specifying the day and hour which have been calculated as auspicious for the wedding. It is stated that no weddings should be celebrated during the period of occultation of the planets Jupiter and Venus, nor on the day before new moon, nor the Sankrānt or day on which the sun passes from one zodiacal sign to another, nor in the Singhast year, when the planet Jupiter is in the constellation Leo. This takes place once in twelve years. Marriages are usually prohibited during the four months of the rainy season, and sometimes also in Pūs, Jeth or other months.