If in a dream you received a card, then in real life unpleasant news will visit your house considerably more often than joyful. To receive a greeting card means that your head will shortly show discontent concerning your work. To receive an invitation card means that your joyful mood will be saddened by unpleasant news from relatives. For the woman such dream foretells a quarrel with the spouse. If dreamed you that you sign a greeting card, then it means that you are too frank in communication with people owing to what you often fall a victim of a gossip and deception. To lower a card in a mailbox - to carnal pleasures.
Look also: Invitation
Be sure and keep any other thoughts out of your mind before drifting to sleep as a cluttered mind can decrease the chances that you will remember your dreams upon waking. Also, focusing on remembering your dreams upon waking in the morning is another very important thing. This sounds very easy, but is often hard for some to do. Interpret a dream by "dictionary dream of interpretation"
When you very first wake up, simply think about your dreams. Don't allow your mind to drift off to other things, just lay there and think about the things you dreamt about the night before - dictionary dream meaning.