Reddit mentions of He: Understanding Masculine Psychology

Your animus will never leave you, but the relationship can fail to develop. Remember that she's the same woman with a thousand different faces. She expects every one of her many incarnations to be treated with the same respect, including the ones you don't find attractive. It's a test from your subconscious. All the waitress was doing was speaking her mind; it's no harm to you if you're complimented. The girl's trying to work it a little, have some fun with you. She can't get lucky if she doesn't try ;)

So relax, and the next time she's in your dreams, see what else she has to say. The setting of the dream and her white outfit make me think that you have the ability to develop a relationship with your inner woman (which is called anima, btw. animus is the inner man in female psyches). The inspiration she can give will lift any depression, but you have to play the game her way or she won't respond. You make it possible with your willingness, and your ability to relax in any situation and feel your way through, to be kind and receptive to everyone -- at least initially.

If you want to know more, look up "He: Understanding Male Psychology" by Robert Johnson. He's written more about the anima/animus in other books, but this one is a good place to start. Take care.