Shin'nyo

Shin'nyo is a extremely powerful Dōjutsu technique, sterning from the legendary Rinnegan, and was discovered by Rikudō Sennin's brother after his death. It is believed that the Sharingan technique Izanagi is a derived, but downgraded form of Shin'nyo.

Similar to Izanagi, Shin'nyo is a genjutsu that is not meant to be cast on a person, but rather on a certain object or other inanimate thing, even chakra. It then removes the boundaries of reality and illusion around that object's personal space. This allows the user to control that objects' state of existence. The actual effects of Shin'nyo vary from user to user, but seem to involve the ability to deem negative events an illusion and positive events a reality. In Shinjin's words, it gives the object a mind, and then subjugates that mind, allowing the user to make the object "believe" they are something else, which results in the object reacting accordingly. As an example, Shinjin was able to let the rocks surrounding him behave like chakra, giving him a near-limitless supply.

Contrary to Izanagi, where the usage leads to the closure of the eye, Shin'nyo can be used without lossage of the Dōjutsu. It does however, incorporate heavy eye damage and extreme strain on the body, more so then the techniques of the Mangekyō Sharingan.

Influence
Shin'nyo is the japanese name for the Buddhist concept of tathata and is variously translated as "thusness" or "suchness". It can also be translated as "the ultimate nature of all things", referring to Shin'nyo's power to make objects doubt their place in the universe, aswell as their state of existence, their "nature", in other words.