Dreaming of castor oil, denotes that you will seek to overthrow a friend who is secretly abetting your advancement.
Dream dictionary: castor dream meanings
(See Ciuet)
…In a dream, Alcyone means dirt or wealth Aldebran means retreat or one’s sexual organs Aldromeda means a woman in distress Alhena means satisfaction or impotence Antilia means iron Apus means a heavenly bird Ara means flying Arctunus means unlawful earnings or actions Argo means travelling by sea Auriga and Corvus mean fortune and blessings Bootis represents a shepherd or servitude Castor means advancement Cepheus represents a ruler CoronaAustralis means marriage Corona Borealis means forgiveness and safety Cygnus means a swan Grus means departure Libra means adultery The Celestial equator means happiness The Little Bear, the Great Bear, Aquila, Orion, Spica, Arietica or Aquarius among others, if one sees them or owns them or controls them or recognizes their names in a dream, it means befriending someone or marriage to…
(Castor | Civet cat | A fatty substance with a musklike scent which is secreted by a gland near the genitals of a civet, a deer or a beaver. This substance is also used in making perfumes.) In a dream, a civet represents honorable profits or valuable properties, botanical gardens, a school from which one can acquire knowledge and draw benefits, or a business from which one can make profits, or it could mean a profitable leather trade. If one prepares the civet on fire in the dream, it means that he is preparing amber perfume, musk or aloe perfume that is extracted from an aromatic heartwood of the mezereum tree family.