There once was a man who interviewed for a sales job. He sent in a resume and passed the phone interview. When the time came for an in-person interview, he arrived early and dressed nicely. The interviewer was impressed.
Then he did something most inexplicable. He talked his way out of the sales job! He told the interviewer that he had never sold anything and didn't want to try something new. After all, if he did something new he might fail. He even said his lack of experience was a stumbling block. He actually sold the interviewer on the fact that he couldn't sell!!!
He saw only obstacles. Successful sales-people (and successful spouses, parents, and financial gurus) see objectives.
Wise people DO see challenges, but they label obstacles differently. They see obstacles as stepping stones, not stumbling blocks.