1 Peter 5:6-7: 6 Humble yourselves, therefore, under God’s mighty hand, that he may lift you up in due time. 7 Cast all your anxiety on him because he cares for you.
The casting of my cares upon the Lord is an act of humility. Humility is something I must do, not something that is done to me. God my Father lifts me up or exalts at the appropriate time. This is not something I can do but something He does.
The cares of this world come crashing down and in self-reliance I attempt to handle them. Only when I humble myself and allow the mighty hand of God to be my strength do I experience the relief He provides.