One of the beauties of lyrics (and all art) is that the meaning lies in the interpretation. I'm sure this song was written about life on the road (ie touring), but it also works for all sorts of journeys. Some of the most difficult are internal and don't involve a semi...
No, not especially deep. But sometimes simple will do.
sleepless hours and dreamless nights and far aways
wishing you were here
heaven knows and lord it shows when I'm away
wishing you were here
same old show in a different town on another time
wishing you were here
even though you're far away, youre on my mind
wishing you were here
and I'd like to change my life, and you know I would
just to be with you tonight, baby, if I could
but I've got my job to do, and I do it well,
so I guess thats how it is.
wishing you were here
wishing you were here
on the road its a heavy load, but I'll get by
wishing you were here
pay the price, make a sacrifice, and still I'll try
wishing you were here