Genshin Akademiya is a fan-made database for the game Genshin Impact. This website is not affiliated with Hoyoverse, and all in-game elements used are their property.
A pillar formed by the shell of a Geo Hypostasis, composed of high-density Geo energy. It is a testament to Geo's status as the heaviest of the elements. Maybe the reason a Geo Hypostasis creates this pillar out of its shell and raises itself is just to get closer to the sky, not to combat enemies.