Preface We seem to be always looking for love, and we especially want and expect it from our fellow human beings: as a child, from our parents, and later in life, from our partner. The latter, in particular, often turns out to be a disappointment, which in many cases leads to bitter reproaches. Divorces are often accompanied by tremendous hatred and resentment; people feel betrayed. The partner did not give us the love we thought we were entitled to, and now, apparently, we are without love....