It is obtained after the player character finishes The Grand Staircase, The Advance Scouts, The Treacherous Road, and River Monsters quests. Upon return, talk to Daniel after completing the quests and the achievement will be unlocked.
Grants 100 XP and the In a Foreign Land achievement/trophy upon completion.
Behind the scenes
The achievement/trophy listed references Psalm 137:4 of the Bible: "How can we sing the songs of the LORD while in a foreign land?"