"Really, prayer and worry are of the same essence. They are both a rehearsing of circumstances, a mulling over, and a kind of mental and emotional chewing. But in worry, there’s no connection, no traction, no relational receiver. It’s like spinning our wheels. Worrying is like trying to travel in a rocking chair. But when we pray, we are “worrying” at God. We take those anxieties and direct them Godward, taking them to Him, placing them before Him, and—of utmost importance—handing them over. This is why Martin Luther says, “Pray, and let God worry."
Matt Chandler, To Live is Christ and to Die is Gain