To the world, God’s message may sound like a lot of rules and dos and don’ts, but in reality it’s very basic and simple. Love God and love people. (Mat 22:37-40) It doesn’t get any more complicated than that. If you can do that, then the rest just falls into place.
In the same Spirit, when Jesus sat down to give the Sermon on the Mount, He could have stopped with His first words: Blessed are the poor in spirit, for theirs is the kingdom of heaven. (Mat 5:3) Does He really have to say any more?
Love God. Love people. Be humble. Live like that and you will release the kingdom of God everywhere you go.
The Amplified version has an interesting way of putting it: Blessed (happy, to be envied, and spiritually prosperous—with life-joy and satisfaction in God’s favor and salvation, regardless of their outward conditions) are the poor in spirit (the humble, who rate themselves insignificant), for theirs is the kingdom of heaven!
You will be spiritually prosperous when you live in humility, and it will make you happy. That happiness, wrapped in the love of God, is what the kingdom of God is all about. If humility seems like the farthest thing from you, ask God to change you. Give yourself time to grow and mature. That kind of happy will be yours before you know it.