Dreaming about your birthday holds significant symbolism, signifying self-acceptance and celebration of your identity. It reflects a moment in your life when you're embracing and coming to terms with who you are as a person. However, this dream may also reveal underlying fears of aging and the passing of time.

If you dream that your birthday was forgotten, it could point to feelings of loneliness, overshadowing, or a sense of being under-appreciated in your waking life.

On the other hand, having a bad or horrible birthday in your dream suggests feelings of regret or unease about certain aspects of your life.