Mostly when the dreamer sees a birthday cake of his own or the others, it symbolizes its ability to adapt and be polite with the others. The dreamer stands as a positive thinking person, who is not afraid to share with what hes got. There is a chance that all of your dream will come true, as the birthday cake in reality usually represents the wishes and desires. The subconscious mind of yours gives the signal that you should prepare yourself for all the goods that you will have. Now is the pay-back time.
To dream of eating the birthday cake, means that you are feeling loved and appreciated by someone who gave you this cake in the dream. The dream could also signify the fact that you are feeling hungry during the sleep.