Here and there, however, landmarks protrude above the humdrum scenery. A marriage, a birth, a death, a golden anniversary. The same is true when we travel. We remember clearly the five minutes we spent at Niagara Falls as though it were yesterday, although it happened ten years ago. We still smell the rain of a tropical rainstorm on Fiji, the fumes of a childhood traffic-jam on the way to the Eiffel Tower.
Travel makes time significant and memorable.
We talk of life being a journey. The essence of life is to journey, to move, to develop. The essential journey is to the self, to develop the internal landscape of the soul. In order for Abraham to fulfill his potential and be the Father of the Jewish People, he had to go, to journey. Maybe it was for this reason that G-d didn't tell him his destination.