Everyone has multiple facets, and I think our dream selves are often more aware of that than our conscious selves. My guess is that you have a part of yourself, an inner father aspect, and your relationship with this part of you has been one of nurturing and support. I believe that dreams are trying to bring something to your attention that consciously you aren't fully aware of--it's possible that in your conscious attitude toward your father aspect, you still have a lot of reservations and negative associations. The dream is trying to bring to your attention all the positive aspects of your father aspect.