Ninth House is the house of spirituality, higher learning and religion. Jupiter is the natural lord of ninth house according to Bhrigu Samhita. Ketu and Jupiter have some similarities as both are into spirituality. But they have differences also. Jupiter is positive and accepting. Ketu is negative, anti-social and discarding type. Naturally Ketu may reject certain religious ideas and customs.

    Ketu is one planet who loves to be anti-social. It hates society norms and loves going against the so-called normal. Ninth house is the house of religion and faith. Every religion and faith has certain downsides which Ketu would never accept. Ketu would either rebel against those religious customs and traditions or discard them. With Ketu in ninth house a native is far more likely to pursue his/her version of spirituality and religion.

    With Ketu in ninth house there would be Rahu in third house. This means a person can have differences with brothers, sisters and neighbors. Also possible are differences with sister-in-law and brother-in-law and no talking terms with them. Ninth house also denotes long distance travels. With Ketu in ninth house there is a chance for spiritual progress on long distance travels.

    Ninth house also deals with ancestry and family legacy. Unless other factors help in horoscope its less likely that a native is proud of his ancenstry and family legacy. Ninth house also deals with offshore businesses. Ketu can allow business related to international security, working as a missionary on foreign countries, sell medical equipments and goods to foreign countries as well as travel around the world for religious purpose.

     Ketu isn't bad in ninth house. If a native has Ketu in ninth house he/she must try to avoid fights with brother-in-law and sister-in-law as well as own brothers and sisters. Also one must avoid being too critical of religion and religious practices. Natives are advised to find one's own path to spirituality and ultimate truth without hurting the religious sentiments and views of others.