There are several types of inso assumed by Amida Nyorai, any of which is formed in principle by the thumbs and the forefingers (or otherwise, the middle or annular fingers) forming a circle.
阿弥陀如来の印相には数種類あるが、いずれの場合も親指と人差し指（または中指、薬指）で輪をつくるのが原則である。