There are not many difficult achievements in "Dragon Age: Shadow Guardian". The achievement of clearing your mind and opening your heart is one of them. If you want to achieve this achievement, you only need to send your voice to Mi Thor is enough, and the six [Memories of Fen'harel] achievements require clearing the Crossroads mission.
How to clear your mind and open your heart in Dragon Age 4
Clear your mind and open your heart
Sending your voice to Mishor.
The six [Memories of Fen'Harel] achievements require you to clear the Crossroads mission, get all the statues, use them in the lighthouse hall, and discuss Eggman's gossip with your companions.
After reading all the memories, you will receive a new mission. Finally, you can get the achievement by convincing her during the conversation with Mysol.
1. Must select "I need your help";
2. Choose 3 of the next 4 options and the corresponding correct persuasion option
Solas is helping me - you should respect him
We must stop the pandemic - you stood up
We must stop the gods - they are sorry for you
We deserve your help - building a safe place