This place is situated in the eastern part of Porimos Ring. This is one of the most important locations in Assassin's Creed: Odyssey Fate of Atlantis - you get here during the main storyline.
To get inside this location, you need to enter the cave located near the water. You can notice it easily because the door has a golden glow.
This location doesn't have many side rooms and corridors. Keep moving straight until you reach the great hall.
This place is guarded by enemies. Eliminate them quietly to be able to explore the Insight of Blessings.
A chest is on the left side of the room. Inside, you will find Forged Mace of the Isu.
A chest with knowledge points is in the middle of the room. If there are no enemies around, go to it to collect the data.
To use the tablet, you need to climb the stairs. If you have killed the enemies stealthily, you will encounter one more enemy. He stands with his back towards you so you can stealth kill him.