To Carry the World
It sounds hard and hurtful, but so many people do it. They may not know it, but they do it.
Let's say we all started out with a rock. Just a rock. To carry around till the end of your days.
Some don't mind, while others would rather "die" than continue on with this "burden".
So, they give it to someone else, so that she can "hold on to it till they get back"
But as she goes on, others will start to take advantage of her, giving her their rocks so that they can go on without worrying about their rocks.
Over time, with all of the rock's weight, she stops to look at her new hoard. She can no longer move. she can't continue to walk, for everyone's rocks altogether create a mountain.
She became stuck, and could no longer do anything, or go anywhere, yet, over time, she was fine. She made a life for herself by the mountain. She would no longer be angry at the people who would drop off their rocks by her mountain. Over time, she had the weight of the world in her possession.
She enjoyed being able to relieve everyone else from their misery; but like everyone else, her life must come to an end, and someone else must continue to bear the burden of the world.