Today, my Mom told me this "word -picture" (after I had spent a lot of time on, well, the blog):
I have a jar, some rice and a few walnuts. First, I will pour the rice into the jar, so that it goes all the way up to the brim. With the jar filled, I try to stuff the walnuts in. What happens? The walnuts don't fit.
The walnuts are representing the necessities of life, like prayer. Or laundry. Or schoolwork. The rice stands for all the luxuries and things that are not necessities. If (and when) I put in the luxuries first, the necessities won't fit and hence don't get done.
Now think: if I put in the walnuts first, and then the rice, it all fits. Guess what that means! :)