Imagine a jewellery box filled with jewellery. For as long as there is jewellery inside this box, the box will be kept safe and looked after. As soon as the box is emptied, the box will no longer have any value.
This is exactly the example of a hāfiz. For as long as the Qur'ān remains embedded in his heart, he will be kept safe from sins, evils, disgrace and other calamities in this world. He will also have the respect of others.