In the Holding Cells you´ll be attacked, so use Calm Humanoid spells or levitatation to avoid battles. You´ll find Mehra in the Holding Cell on the right. Talk to Milo and give her a Divine Intervention scroll. You can use one yourself ( or use any other teleport spell), or make your way out of the Ministry the hard way, by running the Gauntlet again. Once out, head across the water to Ebonheart, and speak to Blatta Hateria, who will take you to the Holamayan Monastery. Once there, talk to both Mehra Milo and the NPC next to her, Gilvas Barelo, who will give you the documents you need to take to Nibani Maesa. Talk to her back in Urshilaku Camp and she´ll start you on the trials.