Morrowind:Hortator and Nerevarine

Quick Walkthrough
# Once the Fourth and Fifth Trials are completed, go to the Temple Canton in Vivec to meet with Archcanon Tholer Saryoni.
# Talk with Danso Indules near the entrance to the High Fane and arrange a meeting with the Archcanon.
# Enter the Archcanon's office from the locked back door in the Hall of Wisdom.
# Talk with Archcanon Tholer Saryoni to arrange a meeting with Vivec.
# Go south to the Palace of Vivec, and talk with the god.
# Receive the five step plan to defeat Dagoth Ur.

Detailed Walkthrough
:''If Vivec has already been defeated, refer to the Yagrum Bagarn and Wraithguard article to learn how to use the Wraithguard.

Overview of the Fourth and Fifth Trials
By now you should have either completed the Fourth and Fifth Trials (being named Hortator by the three Great Houses and Nerevarine by the four Ashlander Tribes), or bypassed them (by being at least level 20 and having 50 or more reputation). You will be told that you should meet with the Archcanon in Vivec High Fane, so head there now.

Finding the Archcanon
Meet with Danso Indules in the Temple Canton of Vivec, in the central exterior tunnel. Danso says that Archcanon Saryoni is waiting for you in his private quarters in the East Chapel of the High Fane. Once you enter the High Fane, you quickly discover that the Archcanon is actually behind a   door. Unfortunately there's an Ordinator standing nearby which means that none but the most stealthy of characters may wish to try it. There is a back door from the Hall of Wisdom and, although the door is still  , there's no Ordinator on watch.

To reach this back door, just walk/run through the large half-domed corridor past the woman standing there and proceed forward up the steps and turn
left. Upon entering door you should be standing in the hallway, (click on local map) move forward to the middle section (you'll see on map 3 rows of entry)
take the middle path going left and walk forward to opening and turn left again and go upstairs. (local map w/your cursor will show High Fane entry).

Talking with the Archcanon
Once inside the Archcanon's office, you can talk with Tholer Saryoni. Choose "Temple's doctrine," and after a brief talk, you are given the choice to visit the god Vivec, who will hopefully shed some more light on the current situation. When you say yes, you are given two keys: for the Archcanon's office and the Palace of Vivec. You are warned that the Ordinators are still not under Tholer's control.

Meet with Vivec
The Palace of Vivec can be found at the top of the puzzle canal, south of the Temple Canton. You can find Vivec just inside the entrance. Vivec goes over the plan for you to follow in the future (assuming you accept all the items and oaths). You receive the Wraithguard, a powerful right gauntlet needed to defeat Dagoth Ur. Vivec gives you his blessing and says that he will end the persecution of the Dissident Priests and the Nerevarine by the Tribunal Temple (After which the Temple ends its hostility and you can join the Temple or complete any open Temple quests). You receive detailed plans on exactly how to go about defeating Dagoth Ur.

Plan to Defeat Dagoth Ur
The plan involves five basic steps:

#A series of aggressive raids within the Ghostfence.
#A series of aggressive raids to neutralize Dagoth Ur's ash vampire kin and recover artifacts from the bodies of said kin.
#An assault of Gate Citadel Vemynal to neutralize Dagoth Vemyn and recover the artifact hammer Sunder.
#An assault of Gate Citadel Odrosal, to neutralize Dagoth Odros and recover the artifact blade Keening.
#An assault of Citadel Dagoth Ur with the artifacts Wraithguard, Sunder, and Keening to sever Dagoth Ur's connection to the Heart of Lorkhan and thus to destroy Dagoth Ur. 

The plans Vivec gives you are detailed and are of great aid, so read and use them.

Quest Stages