Matt.5:3-4."3.Blessed are the poor in the spirit for theirs is the kingdom of God, 4.Blessed are those who mourn for they shall be comforted". Going by this,how can someone be poor in the spirit and what does it mean to mourn?

Poor in spirit in contrast to the spiritually proud and self-sufficient, theirs is the kingdom of heaven. The kingdom is not something earned, it is more a gift than a recompense. The beatitudes refers not so much to attitude toward people as to a disposition before God, namely, humility.

Amen so true. Also speaks of Christians probably cries the most in life cause so much is sacrificed and sometimes even our own families friends husbands (or wives) children etc for the sake of believing in Jesus. Do you remember somewhere in Scripture, it talks about the battle isn't for the swift or the strong but for the patient & dedicated ones (don't want to mix up words), Christians are always sometimes treated unfairly cause of our God, and we are probably the less attractive cause our Lord was unattractive. Once we really start to imitate our Lord through & through w/ the right heart, more trials & tribulations comes our way. If we were the worlds friend we'd be God's enemy and we wouldn't have many worries toward God and His Word. So we're blessed to be treated bad & looked down upon cause our Lord was and it let's us know we belong to Him. If we didn't we'd be cursed while being the worlds friend cause they want nothing to do w/ God. Hope this helps, God bless.