“The biggest obstacle we have to understanding the Word of God is our sin.” Fr. Francis Martin says to the young deacon, now Msgr. Charles Pope. To read the full reflection on one of the most important beatitudes, go to the ADW blog. In a nutshell, we need to stop sinning. We should pray to become more holy.
There is so much evil in this world, and much of it comes from our fallen natures, our propensity to sin. We must fight it. Just like the boy David chooses five smooth stones in preparation to bring down the mighty Goliath, so Our Lady gives us five stones to fight the devil:
Prayer -- Pray without ceasing (1 Thessalonians 5:17).
Fasting -- Certain devils, can be cast out in no other way except by prayer and fasting, said Jesus (Mark 9:29).
Daily Bible Reading -- For the word of God is living and active and sharper than any two-edged sword, and piercing as far as the division of soul and spirit, of both joints and marrow, and able to judge the thoughts and intentions of the heart (Heb. 4:12).
Confession -- for with the heart a person believes, resulting in righteousness, and with the mouth he confesses, resulting in salvation (Romans 10:10).
Eucharist -- So Jesus said to them, Truly, truly, I say to you, unless you eat the flesh of the Son of Man and drink His blood, you have no life in yourselves (John 6:53).
You can read more here.
Create in me a clean heart, O God, And renew a steadfast spirit within me. Psalm 51:10
I like this recording of the psalm.
Enjoy and God bless.