With her third eye, Kaguya teleports everyone within a certain range to one of her dimensions. As it occurs instantly, enemies can be caught completely off guard; some have found themselves plunging into a river of lava, and encased within a block of ice. Once a person is sent to another dimension, their chakra cannot be sensed from the normal world through traditional means.
Kakashi stated that Kaguya can instantly rewrite all aspects of the dimension, a phenomenon he compared to the creation of genjutsu. The dimensions are very far from each other, and thus, a tremendous amount of chakra is required to open a portal connecting them. Even with her immense chakra reserves, multiple uses of this technique took a toll on Kaguya, as noted by Black Zetsu.
This technique's name comes from Amenominakanushi (天之御中主神, Heavenly Ancestral God of the Originating Heart of the Universe), a Japanese deity who is said to be the absolute centre of the universe, as well as the first Hitorigami that came in to existence, and one of the five Kotoamatsukami.
Naruto Shippūden: Ultimate Ninja Storm 4 gives each dimensional teleportation a unique name; Amenominaka: "Lava" (熔, Yō, Literally meaning: Corrosion), "Ice" (氷, Hyō), "Sand" (砂, Masago), as well as one for returning from her dimensions, "Reverse" (逆, Gyaku).