Ketu
Ketu represents – Moksha, Knwoledge, Psychic, Spiritual Enlightenment, among other things.
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Ketu doesn’t own any house. It gets exalted in Sagittarius and debilitated in Gemini. Ketu’s Dasha lasts for 7 years.
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Ketu’s friends are Mercury, Venus Jupiter. Saturn and Mars its neutral. Sun and Moon are its natural enemies.
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Ketu is a shadow planet. It doesn’t have any shape. Technically speaking it’s a point. It is tail and Rahu is the head or its refereed as Tail of Snake and head is Rahu. Ketu like Rahu is a very mysterious planet. Ketu is mainly related with Liberation, gaining higher knowledge. It is said that where Ketu sits in the chart the native had excellent results of that house is his previous life. It is also said that Ketu causes detachment to few things in the house it sits.
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When placed powerfully it will take the individual towards higher knowledge which ultimately leads to moksha. Ketu can produce surprising results in its dasha. That is why Ketu gets exalted in Saggitaruis, the planet of higher knowledge and wisdom. If Ketu is not placed properly then the person might take bad decisions without thinking properly as Ketu represts tail only.