What to say?

What do you say when you have a frustrated and somewhat lost loved one?! I have a loved one that is frustrated with their career choices, and what path they should take. The career he has done up to date has been somewhat successful, but not satisfying. Now lost and confused on what career path he should take next, I feel terrible because I have no answers and no advice. I am there for him, and of course my support in whatever he chooses is there, but I feel helpless in his time of pain. I hate not knowing the perfect thing to say, or do. I guess my support and love will have to do for now!