Taking in something new is a great way to grow; but sometimes an even better way is by getting rid of something old. Over the years each of us accumulates dross, that worthless material that tarnishes. Vices, negative habits and mindsets don't just come and go, they stick and must be smelted off.
If you want to get down to the elemental metal, you have to eliminate the dross. What impurities in your life need to go? What worthless belief or habit can you melt away?