Aching espirit

most of us know what homesickness is
we have a word for it in English
but do we have a word for that feeling....
the feeling where the spirit craves to explore the unknown
to set off on a journey, meet new folks, hear another tongue
the feeling of disorientation, when you return from a long journey,
the unsatiated spirit yearns for more.....
whats that word?? the closest dictionary word is 'wanderlust'..
the word derived from the Anglo- Saxon roots
but the word they did'nt borrow from the Germans
the word that carries the true essence of the feeling,
an aching espirit and itching feet... is 'fernweh'