A poem records emotions and moods that lie beyond normal language, that can only be patched together and hinted at metaphorically.
“I don't think I've ever seen pie advertised. That's how you know it's good. They advertise ice cream and other desserts. They advertise the bejeezus out of yogurt, but I haven't seen one pie commercial.”
“When you step on the treadmill, make a commitment. Do, say, 3 miles a day. And don't get off until you finish. It doesn't matter what speed you're going. Just don't get off.”