"Cast all your cares (anxiety) upon the Lord, for he cares for you," - The Bible, Peter 5:7
Life is full of difficulties and challenges that can lead to worries, anxieties, and fears. These emotions can overload our minds, which results in us having trouble falling asleep, concentrating, and making progress.
Since many of these challenges can't be avoided or overcome, it is a good idea to consider handing them over. Then, we start where we are, use what you have, and do what you can.