when people go away, or when we leave the places we love, or something we treasure goes out of our life - I have always noticed that before it happens - this leaving, this parting - when we think about it beforehand we are overwhelmed with sadness at the loss to come. ... the most unbearable sense of loss, the worst homesickness of all, so I have found, is this loss and sickness we feel beforehand, before we ever leave home.