From — Passionate Attachments P. 8
Though disappointment greeted the opening of the safe, which was devoid of anything of value or interest, the discovery of a boundless treasure would no less have dissolved the mystery and ended the passion. Closely akin to mystery and of special importance to passionate attachment is the element of danger which lies in the forbidden and the secret. The fantasy of transgression with its associated danger increases the excitement and pleasure of a passionate relationship.”