If you own the new Lightfall DLC, using one of the best Destiny 2 Strand builds is a particularly good idea since the subclass excels at crowd control. You'll be attacked by a lot of enemies while you're trying to enter the correct access codes, so bring your best ad clear weapons and a good roaming Super.
Repeat this process in the following room and then kill all of the Vex there to clear the first encounter. Once you do this three times, the nearby energy wall will dissipate and you can progress forward. Note that the shapes will refresh every few seconds or when you destroy one of them, so don't get too trigger happy or you might accidentally destroy an incorrect shape, causing the code to change. Once you find it, memorize its top-to-bottom order and destroy the shapes around the pillar in the same order. To find out what order you need to shoot the shapes in, look around for a column of holographic shapes. In this encounter, your goal is to input the correct access codes by destroying the three-dimensional shapes next to the Vex pillar at the center of the arena.
