My son, give me your heart, and let your eyes delight in my ways. — Proverbs 23:26

Jesus pronounces a blessing on those who mourn — which sounds like a contradiction until you understand what kind of mourning He means. It's the mourning that comes from seeing your sin clearly, the way Peter went out and wept bitterly. It's mourning over the brokenness of this world and longing for the redemption to come. And the comfort? It's not a pat on the back; it's God Himself wiping every tear. The mourners are blessed because their sorrow leads them to the only One who can truly comfort.