Horn – Dreaming of a horn is a symbol of your own voice. This may be your literal voice with which you speak or sing, but it more likely is your figurative voice, which you use when you write or share your ideas. Blowing a horn is a powerful act of communication in dream symbolism, and indicates your confidence in your ability to make your ideas heard, understood, and even followed. On the other hand, if you dream of blowing a horn and it failing to make a sound, this indicates that you are frustrated with communication in your life right now and you feel you are not being heard.