θɹˈiː bˈʊks ɑːɹ ɔnðə sˈʌbdʒɛkt ʌvðɪ ˈɪnɚ kˈɪŋdəm ænd ɪŋklˈuːd ɹˈaɪɾɪŋz ˌɔn nˈeɪtʃɚ, ɹˌiːɪŋkɑːɹnˈeɪʃən, ænd dˈɛθ.
Three books are on the subject of the inner kingdom and include writings on nature, reincarnation, and death.