The Beatitudes upgrade our internal perspective.
To embrace being poor in spirit, mourning and meekness creates a hunger and thirst for God’s right ways on earth, not just in heaven. You see, the part we miss while boasting of going to heaven and having Christ’s righteousness by faith (cf. Romans 4), is that it turns us into conduits who bring more of heaven to the earthly injustices we encounter here and now. And He promised that we shall be satisfied. Jesus was daring us to test drive His radical reinterpretation of life.