A friend is one to whom one may pour out all the contents of one's heart, chaff and grain together, knowing that the gentlest of hands will take and sift it, keep what is worth keeping and with a breath of kindness blow the rest away.
When we're old, our lives become the sum of all whom we have loved. It is important not to waste anyone. One task of living out the last half of life is excavating and recovering all of those whom we loved the first half. Thus, the recovery of lost loves becomes an important way in which the past affects the present.