"Casting all your care upon him; for he careth for you."
To cast is to throw, the way a fisherman throws a net. It is a deliberate act. You do not gently set your worries near God; you throw them onto Him.
And the reason is beautiful: He cares for you. Not just for the world in general, but for you. Your burdens are not too small or too big for His attention.
Prayer
Lord, I throw my cares onto You today. Thank You that You care for me personally. I will not pick them back up. Amen.
Today's step
Each time a worry returns today, say: "I have cast this on You, Lord, because You care for me."