In astrology, Ketu is considered to be the factor of accidental incidents and premature death, but at the same time, Ketu is also considered to be a factor of spirituality. It is often seen in the conjunction of Moon and Ketu that the native's mother remains ill, the native suffers from seasonal diseases and is also troubled by boils and pimples. If this yoga becomes strong and the lord of the center-triangle comes into this yoga and becomes a Yogyakarta, then such a person will become a great knowledgeable person. Ketu is the factor for the siddhi of tantra-mantra, if Ketu forms Rajyoga, then such a person will attain mantra siddhi.