This page explains how to complete the level 90 post-Endwalker quest "A World with Light and Life".
Requirements
This quest is available if you have completed the quest Return from the Void.
Starting the Quest
Talk to Y'shtola in the Meghaduta Guest Chambers (accessible from Radz-at-Han) to begin the quest.
Speak with Mehryde
Check on the Exit and say Yes to leave. Go south to the Aethernet Shard and use it to go to Mehryde's Meyhane. Go northeast to the door and go through it, and go to the quest icon. Talk to Mehryde to proceed.
Speak with the Meghaduta Attendant
Go northwest through the door and use the Aethernet Shard to go to Meghaduta. Go up the stairs and talk to the Meghaduta Attendant, and say Yes to proceed. There will be a cutscene.
Speak with Zero
Talk to Zero to proceed.
Speak with Mihleel
Go south to the Aethernet Shard and use it to go to Mehryde's Meyhane. You can optionally stand in the glowing circle and talk to Zero and Varshahn.
Go to the quest icon and talk to Mihleel to proceed.
Head to Balshahn Bazaar
Use the nearby Aethernet Shard to go to the Radz-at-Han Aetheryte Plaza, then go northwest to the orange circle on the map. Stand in the glowing circle and talk to Zero to proceed.
Speak with Isu
Go southwest to the Aetheryte Plaza, then go northeast to where the orange arrow is pointing in the minimap. Talk to Isu to proceed.
Head to Windweft
Go southwest to the Aetheryte Plaza and use the Aetheryte to go to Ruveydah Fibers. Go to the orange circle on the map and stand in the glowing circle, then talk to Zero. There will be a cutscene.
Speak with Zero Again
Talk to Zero to complete the quest.
Next Main Scenario Quest
After you complete the quest, talk to Varshahn to accept the next quest: Buried Memory.