My co-worker F shared this:
One day an expert in time management was speaking to a group of business students and, to drive home a point, used an illustration those students will never forget. As he stood in front of the group of high-powered overachievers, he pulled out a one-gallon, wide-mouthed Mason jar and set it on the table in front of him. Then he produced about a dozen fist-sized rocks and carefully placed them, one at a time, into the jar. When the jar was filled to the top and no more rocks would fit inside, he asked, "Is this jar full?"
"Yes," responded everyone in the class.
"Really?" he answered.
He reached under the table and pulled out a bucket of gravel. He dumped some gravel in and shook the jar, causing pieces of gravel to work themselves down into the space between the big rocks. Then he asked the group once more, "Is the jar full?" By this time the class was on to him.
"Probably not," one of them answered.
"Good!" the expert replied. He reached under the table and brought out a bucket of sand. He started dumping the sand in the jar, and it went into all of the spaces left between the rocks and the gravel. Once more he asked the question, "Is this jar full?"
"No!" the class shouted.
Once again the instructor said, "Good." Then he grabbed a pitcher of water and began to pour it in until the jar was filled to the brim. When the jar could hold no more, he looked at the class and asked, "What is the point of this illustration?"
One eager student raised his hand and answered, "The point is, no matter how full your schedule is, if you try really hard you can always fit some more things in it!"
"No," the speaker replied, "that's not the point. The truth this illustration teaches us is this: if you don't put the big rocks in first, you'll never get them in at all."
What are the 'big rocks' in your life? Your children, your loved ones, your education, your dreams, your faith, a worthy cause, teaching or mentoring others, doing things that you love, time for yourself, and your health. Remember to put these BIG ROCKS in first or you'll never get them in at all. If you sweat the little stuff, like the gravel and the sand, then you'll fill your life with all the little things you worry about that don't really matter, and you'll never have the real quality time you need to spend on the big, important things, like the big rocks.
So, when you are reflecting on this short story, ask yourself this question: What are the 'big rocks' in my life? Then, put those in your jar first.