Why are we wounded? What is the purpose of the wound? What is the reason for suffering? These are important questions. The wound enables us to obtain knowledge of Self, to know the part of God that is us. Once we know the part of God that we are, we can see the God-Self in others.
The wound is a tool of consciousness. It creates separation and with it understanding of oneness. How can you understand what oneness means if you have never felt separate?
The wound causes us to believe that we exist as separate entities, that we are born, that we suffer and that we die. Yet, as we learn to heal the wound, we discover the truth about ourselves and each other. We discover that there is a Core Self within us that is beyond birth and death.
http://www.lightforthesoul.com/embracing-our-true-self-excerpt/
Emerging From The Dark Night 