The Moon is the second of three celestial cards near the end of the major arcana; like Star and Sun it represents higher emotional states, influencing a state of mind rather than worldly events.
Moon is an uneasy card symbolizing feral anxiety. When this card shows up, something is going to hit you with highly charged emotions: fright, bewilderment, disorientation, opacity. Moon brings vivid fantasies and illusions, deceptions that can make you lose your direction and purpose because they influence you via your deepest phobias and worries.