...whatever is true, whatever is honorable, whatever is right, whatever is pure, whatever is lovely, whatever is of good repute, if there is any excellence and if anything worthy of praise, dwell on these things.
There are many wonderful things to think about, what are you spending your time thinking about?
...for where your treasure is, there your heart will be also.
We must decide where to place our efforts, our thoughts and desires. Consider carefully, every day, what your mind dwells on and your heart desires. And if need be, change it to something better.