The doughnut and/or the hole

As a child I was taught the adage, "As you go through life let this be your goal: Keep your eye on the doughnut and not on the hole." I often wondered about that saying and what it was suggesting that we do. To me the doughnut represented what is. It is the reality as we see it. It was critical to stay focused on what was apparent and tangible. The hole represented what was not present, the unknown. Don't waste your time focusing on something that isn't there. Yet the hole also defined the doughnut. Without it, the doughnut was a different confection. For me the hole stands for possibility. It never diminishes the doughnut, but somehow completes it. This moves me away from either/or thinking into either/and thinking. How can the real be enhanced by exploring what could be? This expands our world and allows for growth. How would adding the hole to the doughnut expand your world today?