On the road to the pyramids two dogs (good and evil) howl at the sky while a scorpion (vice) watches. The White Pyramid is the True Science - the Black Pyramid is Error. Basically, this Moon card is all about disappointment - a false sense of security - there are hidden dangers and you are kind of trapped.
For me, I see the Moon on this card as being slowly covered by the clouds - so unlike a more "happy," moon card, this one keeps things hidden from you. Or you are being kept ignorant of a situation either by others, or you are maybe fooling yourself?
For this one, I would still say to pay attention to the dreams you have - but be very aware of how you interpret them - don't fool yourself or let things cloud your judgment - and know this is a temporary situation.
My Tarot Card Practice. I have been studying Tarot for over 20 years now and am still learning new things daily.