The idea of someone introducing something into your space.
- Receiving a beneficial injection, with your permission, could represent strengthening or improving yourself, taking measures to protect yourself for future challenges, or it could mean you're feeling the need to strengthen or protect yourself.
- Receiving an injection as part of a helpful, supportive healthcare regimen could represent healthcare in general, a particular health care experience, a subconscious fear, etc.
- Someone trying to give you an injection against your will could mean you feel that someone in your real life is trying to force their opinions, expectations, or wishes onto you or to "inject" themselves into your life or consciousness somehow.