Dark Nights Of The SoulBy: Thomas Moore A 'dark night of the soul' is not a psychological syndrome, but a quest for meaning during life's darkest hours: the loss of a loved one, the end of a relationship, ageing and illness, career disappointments or just an ongoing dissatisfaction with life. Thomas Moore's extensive experience as a psychologist and theologian has taught him that the dark night is a challenge to restore ourselves and to become someone of substance, depth