Postcard dream meaning is explained below using 5 different sources. Each interpretation is shown with its source.

Interpretation 1 — Garuda

Vision: Receiving a postcard: be prepared for a disappointment in matters of love.

If the postcard depicts faraway places: get ready—you may go on a long journey.

The dream may also be a sign that you want to take a trip and/or are in need of more diversion. What is depicted on the postcard? Search for and examine other symbols in the dream. Depth Psychology: See Picture.

Source: Dreamers Dictionary Author: Garuda

Interpretation 2 — Stearn Robinson - Tom Corbett

This friendly form of communication is, oddly enough, an omen of contrary, for if you sent, wrote, or bought one in your dream, you can expect to have some awkward moments over a past indiscretion, and if you received one, the awkward moments will concern a recent financial indiscretion.
Source: The Complete Guide to Interpreting Your Dreams Author: Stearn Robinson - Tom Corbett

Interpretation 3 — Dream Explanations - Anonymous

Dreams of a postcard represent long distance connection, telepathy and a desire to be in touch and in communication with those you love. Consider the picture on the postcard. This picture tells a thousand words.
Source: Strangest Dream Explanations Author: Dream Explanations - Anonymous

Interpretation 4 — Raymond Buckland

You will be attending a social event at which you will be very unsure of yourself.
Source: Gypsy Dream Dictionary Author: Raymond Buckland

Interpretation 5 — myjellybean

To see or read a postcard in your dream, represents your desire to be more open.
Source: My Dream Interpretation Author: myjellybean