Hiraeth is a word from my native Wales that brings together ideas of home, happiness, warmth and longing, distance, separation, pining for the past:

The Land of Lost Content

Into my heart an air that kills
From yon far country blows:
What are those blue remembered hills,
What spires, what farms are those?That is the land of lost content,
I see it shining plain,
The happy highways where I went
And cannot come again.
A E Housman