Gedō: Mikoyose no Jutsu

Usage
This technique allows the user to temporarily summon the souls of deceased individuals from the Pure Land.

It can be used to talk with late family members or to get important information or special help from famous people from the past. For example, Hagoromo summoned the souls of the deceased Kage to help him use the Combined Summoning Technique.

The user is also able to return the souls of persons to the Pure Land who have been called to this world by other means. Thus, it can also be used to undo the Summoning: Impure World Reincarnation.