Explain that the container represents time – it is a limited thing, the rice represents everything that we need to get done and the balls represent the important things (you can relate these to the lesson eg prayer, fasting, scripture study, etc). Pour the rice into the container and then balls and try to close the lid (it shouldn’t fit). Then demonstrate the otherway round with the balls first and the rice second (remember to shake the container halfway through the rice to make sure it gets down around the balls), and hey presto it should all fit in and the lid can be put on :) Always do the important things first!