Keo Ruug Shrine is a Shrine from The Legend of Zelda: Breath of the Wild. This Shrine is located in the Korok Forest of the Great Hyrule Forest region. The Sheikah Monk Keo Ruug offers the "Fateful Stars" trial and he will give a Spirit Orb to Link upon completion of the trial. A Royal Claymore or Knight's Claymore can also be found here after the completion of a second puzzle.
The "Fateful Stars" trial
When Link enters the Shrine of Keo Ruug, the way forward is blocked by metal bars and the only way to proceed is to complete a puzzle involving orbs and putting them in the correct location. The only hint that Link has to go on in order to solve this conundrum is, "Look to the stars for guidance. The constellations are the key". This refers to the constellation-like patterns, as seen on the wall of the Shrine. The solution is based on how many times the constellation in its' particular row is seen on the wall in the blocked-off room. For instance, if there are only three of a particular constellation on the wall visible, Link must put the orb in the third slot. The same is also true for the second puzzle involving the Shrine's treasure. Also, there is no constellation that is never used in the rows for both puzzles.