I loved this movie! Once again M. Night shows his mastery of metaphor. You could go deeper and deeper about the significance of the many elements in this story.
Some of the symbolism : the main character has had a tragedy in his life and needs to heal, this brings forth the character aptly named "Story" who is the genesis of everything. Involved in his healing is the collection of people representing various parts of a personal psyche.
A man with no secrets = being totally honest with yourself
A man whose opinion is highly respected = the rational, wise part of us ( whose opinion went from fear-based to faith )
A guild of women = having to do with feminine nurturing and healing
The always present creature = fear
The creatures at the end that destroy fear = divine laws of the universe
The film critic = ego-based, negative thinking that ultimately gets overtaken by fear
Anyway, there are some of my interpretations, I'd be curious to hear others.