To dream that you have a prosthesis indicates that you are exploring a new perspective in life. You are reaching out in a different and profound way. Consider also where on the body the prosthesis is fitted as that body part may offer additional significance. If you have a prosthetic arm, then it means that you are exploring a completely new way of doing something. If you have a prosthetic leg, then it means that you are headed toward a new journey.
- Common Dreams