If you dream that you are in a wheelchair, it represents the fact that you are dependent on others and must learn to stand on your own two feet.
To dream that you are in a wheelchair, suggests that you need to stand on your own two feet and stop depending on others.
You also need to stand up for yourself.
If someone is able-bodied in real life, but you dream that they are in a wheelchair, that person needs your help in some way.