The first song that came into my head this morning was Peter, Paul and Mary singing Leaving on a jet plane.
The dawn is breaking and it's early morn,
The taxi's waiting and blowing its horn
Already I'm so lonesome, I could cry.
So kiss me and smile for me
Tell me that you'll wait for me
Hold me like you'll never let me go.
This song will strike a chord in anyone who has known the pain of having to leave loved ones, whether for work or emigration or for whatever reason.
In literature the most poetical separation of lovers who have to part at dawn is surely in Romeo and Juliet,
Night's candles are burnt out
and jocund day
on the misty mountain tops.
John Donne 1572-1632, whose poems show what a great and deep passion he had for life and love, also wrote about the anguish of parting at dawn,
Busy old fool, unruly Sun,
Why dost thou thus,
Through windows and through curtains, call on us?..
Love, all alike, no reason knows, nor clime.
Nor hours, days, months, which are the rags of time.
Here are the links.