A little bit of philosophy I came across recently:

What you give your attention to is the person you become. Put another way: the mind is the portal to the soul and what you fill your mind with will shape the trajectory of your character. In the end your life is no more than the sum of what you gave your attention to. That bodes well for those apprentices of Jesus who give the bulk of their attention to him and to all that is good, beautiful and true in his world.

The above resonates with what the apostle Paul says in his letter to the church in Philippi (Philippians 4:8):

Finally, brothers and sisters, whatever is true, whatever is noble, whatever is right, whatever is pure, whatever is lovely, whatever is admirable - if anything is excellent or praiseworthy - think about such things.