Ku-ji itself is a very flexible practice that can be modified depending on the needs of the practitioner. The practice of ku-ji ho as found in Japanese esoteric Buddhism is a sanmitsu nenju (concentrated three mysteries practice), and as such, consists of several dependent, integrated practices. It can be practiced in the form of either of the two mandaras of esoteric Buddhism . The Kongo-kai/金剛界 mandara (vajradhatu; Diamond Universe Nine Assemblies mandala) of Shingon Buddhism, or the Taizo-kai/胎蔵界 mandara (garbhakosa-dhatu; Womb mandala). It is also used by other Buddhist sects, especially in Japan; some Taoists and practitioners of Shinto and Chinese traditional religion; and in folk-magic throughout East Asia.