Defining Moment

We all wait for the moment in our lives where our purpose is explained. The moment when we realize why we're here and what we're meant to become.
Sometimes our dreams are fulfilled.
Sometimes we discover that what we had planned, is not the life we will live.
And sometimes our moment comes in a way we could never have imagined.
How do we handle those surprises?
How do we move forward when our lives take an unexpected turn?
How do we survive our defining moment?