A dream featuring a giant suggests that you are going through a tough time, you are facing obstacles or feeling overwhelmed. It may also symbolize something or someone that has power over you. On a more positive note, dreaming of a giant may also reflect your power, skills or abilities.
To dream of becoming a giant implies that you feel inferior to someone or at something. On the other hand, to dream of already being a giant means that you feel better or stronger than others. You also feel that you are dominating others.
Dreaming of a red giant can suggest that you are nearing the end of a relationship, career or some other aspect in your waking life.