A wise man once said:
You are the salt of the earth. But if salt lost its savour, what would be salted with it? It would be good for nothing, and be cast away and trodden under foot.
What does this mean? That everyone has within them the ability to make everything better, the way salt makes food taste better. But if you don’t use it, this ability is good for nothing, and you’ve thrown away your chance to improve the world.
You are the light of the world. No one lights a candle and hides it under a basket. Rather, one puts it in a candlestick, and it gives light to all that are in the house. Let your light shine before all men, like a city built on an hill that cannot be hidden, so that all may see your good works.
This is an exhortation to lead by example, rather than quietly doing good things. By openly doing good, you light a fire in the hearts of others, and give them the courage to do the same. We all have the eternal spark within us, but only those who find it in themselves and reveal it to the world will help to bring about heaven on earth. Luceat lux vestra: let your light shine.