An injection in a dream signifies the introduction of new ideas, experiences, or influences into your waking life. It can symbolize a desire for personal growth, development, or change. The type of injection and its context within the dream can provide further insight into the specific areas of your life that may be undergoing transformation. In some cases, an injection might represent the need to confront and overcome a challenging situation or problem. However, it is essential to consider the overall emotions and feelings associated with the dream, as they will help determine whether the injection has a positive or negative connotation.