Not to be pimping my own articles here, but here's something I wrote up a while ago, it was inspired by training at ICA.
Problems, Challenges, & Opportunities
Basically if we look at something as a problem, it's a headache and we want to avoid it. A challenge, while tough, offers some reward. An opportunity we're excited about, and we can't wait to get into it.
Lots of love,
Colm