Love 
To dream of love symbolizes strong emotions brought by a current relationship in your waking life. It suggests joy and satisfaction with your present state in life. This may also connote the opposite, particularly a yearning to get into a romantic relationship and experience the bliss of being loved unconditionally.
To dream of a couple in love suggests that success is within reach.
To dream that your friend is in love with you indicates that you are romantically interested in your friend. You might have fallen in love with your best friend and cannot take your mind off the possibilities of taking your platonic relationship to a different level. Alternatively, the dream may also imply that you have come to recognize certain traits of your best friend and integrated them into your own character.
To dream that you are making love in public indicates a gush of sexual urges and desires. This might be a call to let go of certain inhibitions in expressing how you truly feel. Then again, your dream may be a reflection of how you see your own sexuality as it relates to political and social standards. You may be confused with your notion of relationships, sex, marriage, love, and gender differences/roles.
Gala
To dream of a gala is an indication that an aspect of your waking life holds the key to success and celebration. To be invited to a gala signals good news that you have already heard but not registered. To dream of organizing a gala event suggests you have come up with a winning idea and would do well to follow through at this time.
Adultery
To dream that you've committed adultery means that you could have sexual desires or be sabotaging yourself. This likely comes from the root of your subconscious mind. You could be drawn into an issue that is not within your best interest such as a legal situation.
To dream that your mate or spouse has cheated means that you have concerns about abandonment. You may sense neglect within your own relationship. You could also feel as though you're not living up to what others want from others.
To dream that you are cheating with your friend's friend means that you're probably feeling forsaken by your own self.
Flirting
To dream that you are flirting indicates that you feel a desire for more intimacy and affection. You may be ready to enter into a serious relationship in the near future.
Celebration
To dream of a celebration symbolizes your quest for excellence and perfection. This dream may also be a way of giving yourself praise for reaching your objectives and for accomplishing difficult tasks. Perhaps you have performed a remarkable feat or you have helped someone out in a generous way. It can also represent liberation from a restricting issue or situation. These dreams are often an indication of a significant change or transformation in some aspect of your life.
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