Rebecca Solnit, in her book, "A Field Guide to Getting Lost," has this to say.
"The mystic Simone Weil wrote to a friend on another continent, "Let us love this distance, which is thoroughly woven with friendship, since those who do not love each other are not separated." For Weil, love is the atmosphere that fills and colors the distance between herself and her friend. Even when that friend arrives on the doorstep, something remains impossibly remote: when you step forward to embrace them your arms are wrapped around mystery, around the unknowable, around that which cannot be possessed. The far seeps in even to the nearest. After all we hardly know our own depths."