Dreaming that you are taking part in an audition could be a sign that you are feeling vulnerable or that others are testing you.
You may need to develop more confidence when you express yourself in waking life.
How does your audience respond to your audition? That is a sign of how you think people view you in waking life.
What was the part or job you were auditioning for? Knowing this may help you interpret the dream meaning, it may be that you need to work harder on that aspect of your life?