I think that there are some types of people who, once they know that there is a place that can be reached as a human being, must aim for it or be unable to continue living.
The thing is, to reach this place, there's a lot to go through. A lot of pain, loneliness, a lot of obstacles that maybe we don't have enough strength to overcome. So for a time we're stuck in purgatory: unable to stay where we are, knowing we have to seek our goal; yet unable to step forward, because the journey might be too much, too painful, too hard.
In the end there is only so long we can stay in one place as the world moves on.