According to Esoteric Buddhism, Jo-in assumed by Amida Nyorai is supposed to be Hokkaijo-in; however, a variation formed by both hands placed together in the same manner and the thumbs and the forefingers (or otherwise, the middle or annular fingers) forming a circle may be assumed by Amida Nyorai of the Jodo Sect, and so on.
阿弥陀如来の定印は密教では法界定印とされるが、浄土教などでの場合は同じように両手を重ねて親指と人差し指（または中指、薬指）で輪をつくるものもある。