By the time I make my way to the border of Mauritania, to...

By the time I make my way to the border of Mauritania, to the edge of the Sahara, I see no end to being lost. You can spend your entire life simply falling in that direction. It isn't a station you reach but just the general state of going down. Once you make it back, if you make it back, you will stand before your long-lost friends but in some essential way they will no longer know you.