Conventional wisdom says:
"You'll be happy when you stand up for yourself and never admit you've made a mistake. Don't show any weakness, and you'll be OK."
"Don't be sorry for anything you've done. You'll be happier when you just remember to live for today and live your life without regrets."
"You'll be happy when you put yourself first and remember to look out for #1."
"You'll be satisfied when you make enough money, have enough stuff, and keep up with the Kardashian's. That's when you'll be happy."
"You'll be happiest when you remember you're better than everyone else, so keep criticizing others to make you feel better about yourself."
"You'll find happiness when you realize all you have to do is live up to your full potential."
"If you want to be anything in this world, fight to keep your ground and protect your rights so you can maintain the upper hand. Life is a competition, and you'll be happier as a winner than a loser."
"You'll be happier when you don't take your faith too seriously. Keep it low key so no one notices."
And then Jesus has to go and say things like this:
"Blessed are the poor in spirit, for theirs is the kingdom of heaven. Blessed are those who mourn, for they will be comforted. Blessed are the meek, for they will inherit the earth. Blessed are they who hunger and thirst for righteousness, for they will be satisfied. Blessed are the merciful, for they will receive mercy. Blessed are the pure in heart, for they will see God. Blessed are the peacemakers, for they will be called the children of God. Blessed are those who are persecuted because of righteousness, for theirs is the kingdom of heaven. Blessed are you when people insult you and falsely say all kinds of evil against you because of me. Rejoice and be glad, for great is your reward in heaven."
Jesus flips conventional wisdom on its head. Jesus doesn't turn things upside down to offer us a different perspective on life; he turns things upside down to make things right side up. The Way of Jesus leads to true happiness.