When Saturn is present in a person's horoscope from one zodiac sign before to one zodiac sign after the person's zodiac sign, then Saturn's Sade Sati remains on that person. Because Saturn stays in one zodiac sign for two and a half years, hence the person's zodiac sign remains in one zodiac sign for the first two and a half years and then one zodiac sign for two and a half years. Thus, a total of seven and a half years is called Hi Sade Sati. For a person in whose horoscope Saturn is in an auspicious position, Sade Sati is considered auspicious and for a person in whose horoscope Saturn is in an inauspicious position, there are ill effects of Saturn's Sade Sati. Such a person should get his horoscope analyzed by a qualified astrologer and get the peace of Saturn's Sade Sati done by a qualified Brahmin.