"Walkabout" is a term I personally learnt from Babylon 5's Episode 318 of the same name...(Here's again "The Wisdom of Babylon 5"!)
In the words of Dr. Stephen Franklin:
"As a Foundationist, I was always taught that if you're not careful you can lose yourself in the world. You get too busy with things and not busy enough with yourself. Spending days and nights living someone else's agendas, fighting someone else's battles and you're doing the work you're supposed to be doing, but every day there's less and less of you in it all. Till one day you come to a fork in the road and because you're distracted, you're not thinking, you lose yourself. You go right and the rest of you, the really important part of you, goes left. And you don't even know you've done it till you realize, you finally realize that you don't have any idea who you are when you're not doing those things...
...You just leave everything and you start walking... The theory is, if you're separated from yourself you start walking and you keep walking till you meet yourself. Then you sit down and have a long talk. Talk about everything that you've learned, everything that you felt and you talk until you've run out of words. Now, that's vital because the real important things can't be said.
And then, if you're lucky, you look up and there's just you. Then you can go home..."
As Dr. Franklin said, this is taken from the Aborigines of Australia (Here's the "Only True Religion" again!)...
I hope one day I'll manage to do it...