There is convincing evidence that the search for solitude is not a luxury but a biological need. Just as humans posses a herding instinct that keeps us close to others most of the time, we also have a conflicting drive to seek out solitude. If the distance between ourselves and others becomes too great, we experience isolation and alienation, yet if the proximity to others becomes too close, we feel smothered and trapped.
Jeffrey Kottler
It is not the mountain we conquer, but ourselves.