This page explains how to complete the Shadowbringers Main Scenario Quest "In His Garden".
This quest is available if you have completed the quest Reassuring the Masses.
Starting the Quest
Talk to Katliss in the Crystarium to begin the quest.
Take a Moment
Go northwest to the Aethernet Shard and use it to go to the Temenos Rookery. Go west to where the orange arrow is pointing in the minimap, and go up the stairs to the top of the structure. Check on the sparkling Destination to proceed. There will be a cutscene.
Go down the stairs and go east to the southwest orange circle on the map. Talk to Szem Djenmai to proceed.
Go to the nearby Aethernet Shard and use it to go to the Cabinet of Curiosity. Go north through the door and go up the spiral staircase. Talk to Moren to proceed.
Go back down the spiral staircase and go south through the door, then use the Aethernet Shard to go to the Amaro Launch. Go to the northwest part of the orange circle on the map and talk to Cassard to proceed.
Speak with Lyna
Use the nearby Aethernet Shard to go Tesselation (Lakeland). Go northwest to where the orange arrow is pointing in the minimap. Talk to Lyna to complete the quest. There will be a cutscene.
Next Main Scenario Quest
After you complete the quest, talk to Lyna to accept the next quest: The Unbroken Thread.