If I leave here tomorrow
Would you still remember me?
For I must be travelling on, now,
'Cause there are too many places I've got to see.
But if I stayed here with you, girl,
Things just couldn't be the same,
'Cause I'm free as a bird now,
And this bird you cannot change,
Lord knows I can't change.

One of my favourite songs, this gem from Lynyrd Skynyrd epitomises so many things that go on through our mind. The desire to break free, to see new things, to test yourself to the limits.