The daring, doing, positive side of self; how you relate to father figures or dominant male authoritative men; the side of your nature that is capable or is in touch with the wider issues in your life, and makes decisions out of comprehensive awareness.
The captain may also be an expression of your inner spirit that guides and directs you.
What is the captain doing and what is my relationship with him?
If I am the captain what are my plans or activities?
Is this about my relationship with authority, or with my spirit?