The term Walkabout comes from the Australian Aboriginal. The idea is that a person can get so caught up in one's work, obligations and duties that the truly important parts of one's self become lost. From there it is a downward spiral as one gets farther and farther from the true self. A crisis situation usually develops that awakens the wayward to the absent true self. It is at this time that one must go on walkabout. All possessions are left behind (except for essential items) and one starts walking.
Metaphorically speaking, the journey goes on until you meet yourself. Once you find yourself, you sit down and have a long talk about what one has learned, felt and done in each other's absence. One talks until there is nothing left to say -- the truly important things cannot be said. If one is lucky, after everything has been said and unsaid, one looks up and sees only one person instead of the previous two.