Overcome the Gatekeeper guarding Saint-14's stronghold.
- From the Confluxes, a massive Minotaur, Hagios, Reverent Mind will appear.
- This Minotaur is holding the door closed and it will be heavily defended with supporting Vex units.
- You will need to fight the Minotaur in addition to a number of Descendant Goblins and Descendant Harpies.
- Once it has been damage, the Reverent Mind will create a massive shield around itself.
- Attacks cannot penetrate the shield and the Guardian must enter within it to damage the Reverent Mind.
- Once it has taken ~50% health damage, it will dissolve the shield and then teleport to a different location nearby in the Simulant Future.
- Likely it has teleported to the other side of area nearby the door.
- Once again, it will quickly set up its protective shield.
- This time, it will be guarded by a number of Descendant Axis Fanatics and Descendant Fanatics and a pair of Descendant Axis Minotaurs.
- Once again, fight through its supporting units or press the attack against the Revenent Mind itself inside its shield.
- Inside the shield, be wary of the Descendant Axis Harpies and Descendant Goblins.
- Keep the attack up until you defeat the Reverent Mind.