Carrying Capacity (Song)

Other people can hold a two-ton truck full of the world, or at least fill the back of their pick-up full. Many could astound a waitress, balancing six plates full of the world. Even those who are not so graceful can manage a backpack full, a basket. Me, I hold out my cupped hands and already I am overwhelmed, must rush back to my silent room. How it is I can hold so little and love so much?