Some sibs feel guilty. Maybe you feel like you could have stopped the accident from happening if you had done “just one thing”.
Or maybe you were mad at your sib on the day of the accident and wished that something bad would happen to him or her. You might feel like the accident happened because of this wish.
Maybe you feel guilty because you didn’t get hurt and they did.

Try to remember…
Although you care for your sibling, it’s not your responsibility to protect them from danger. Adults are responsible for that. However, it’s such a hard job that nobody can do a perfect job all the time!
Also, no matter how hard you wish bad things on someone, you CAN’T magically make them happen just by thinking about them.