You are very welcome!
I link the female self with the astral elemental and the male self with the mental elemental. To me, this reunion means the unification of one's personality (lower self). Once the personality is unified, it may then join with the higher self. (Eventually perhaps...?) So, as I see it, these selves symbolise more than being in a male or in a female body. To be honest, in my dreams back then, I usually played the female's part, and did not dream of being a man more than once or twice at the time, and I'm pretty sure that this one time I'm thinking of was a karmic dream. That said, you could be expressing this differently, or it could have to do with something else...