Operating the Prism of Khaj-Nisut is a quest objective part of the Dreams Beneath the Searing Sand quest, which in turn is part of the Golden Slumber questline. After beating the three trials in Khaj-Nisut, you’ll be asked to find your way there, enter its main structure, and explore the lower floor.

You’ll eventually come to the upper one, and there a puzzle awaits you. Let this guide teach you how to Operate Prism of Khaj-Nitsu and reach the floor.

How to Operate Prism of Khaj-Nisut in Genshin Impact

Getting to the Prism

After you’re done exploring the lower floor and your objective changes to Operate Prism of Khaj-Nitsu, return to the main hall of the structure and look around for an updraft.

The updraft will take you to a series of floating platforms. Ignore them and focus on the two Four-Leaf Sigils visible from the highest point of the updraft, as using them in succession will leave you in front of the Prism.

It’s red colored and in the center of a platform that is also in the center of everything else.

The puzzle has you change and operate the Prism to move the platforms in a way that they aren’t interrupting any Primal Beam. Doing so without understanding can just worsen the puzzle and make it more complicated.

There’s more than one solution to this puzzle, but to avoid the hassle use the shortest one we provide for you:

• Operate
• Switch (The Prism will turn blue)
• Operate
• Operate

When the deed is done a mechanism will appear. Use the Four-Leaf Sigil close to it to stick to the wall and Start Up the mechanism.

A short scene triggers showing you an elevator. Walk to the center of the platform-elevator and Activate it to reach the upper floor. You’re done here.