Matthew 5:8
Blessed are the pure in heart: for they shall see God.
Not only with the perception of faith, but in the glory of Heaven. As stated in Hebrews 12:14... "Try to live in peace with all people, and try to live free from sin. Anyone whose life is not holy will never see the Lord." ...Rev 22:4 states that they shall see His face, and His name shall be on their foreheads. This means that someday, in heaven, we can look on God's face without harm b/c we are now holy.
Hebrews 12:14 (NKJV): "Pursue peace with all people, and holiness, without which no one will see the Lord:"
To pursue ... holiness requires:
1) drawing near to God with full faith and a cleansed conscience
2) a genuine acceptance of Christ as the Savior and sacrifice for sin, bringing the sinner into fellowship with God. Unbelievers will not be drawn to accept Christ if believers' lives do not demonstrate the qualities God desires, including peace and holiness... wow... that's powerful. That's a heavy weight on the shoulders of those of us who ARE Christians.