With the Guidance Node operational, your path to pursue the archbishop becomes increasingly clear.

Requirements

This quest is available if you have completed the quest Systematic Exploration.

Starting the Quest

Talk to the Guidance Node to begin the quest. You may choose whichever dialog option you wish.

Speak with Alphinaud

Talk to Alphinaud to proceed.

Speak with the Guidance Node

First, make your way southeast, then head east into the cave, and turn left as soon as you have entered the cave, to go east to where the orange arrow is pointing in the minimap. Talk to the Guidance Node to proceed. There will be a cutscene.

Use the Allagan Teleporter

Go northeast to the red platform and go up one of the ramps to the first level, then go up one of the ramps to the upper level, and check on the Allagan Teleporter. There will be a cutscene.

Speak with the Guidance Node Again

Go east to the quest icon on the map and talk to the Guidance Node to complete the quest.

Next Main Scenario Quest

After you complete the quest, talk to the Guidance Node to accept the next quest: Chimerical Maintenance.