Matthew 5:8

Blessed (anticipating God’s presence, spiritually mature) are the pure in heart (those with integrity, moral courage, and godly character), for they will see God.

We should keep our hearts pure, and we have to be mindful of our surroundings.  What we read, listen to and spend time doing separate from the word of God will influence our heart.  If we constantly hear negative comments and accept them as truth, our hearts will turn from the pure word of God.  Our goal is integrity and moral character so that we can see God.