“God is there in these moments of rest and can give us, in a single instant, exactly what we need. Then the rest of the day can take its course, under the same effort and strain, perhaps, but in peace. And when night comes and you look back over the day and see how fragmentary everything has been and how much you planned that has gone undone and all the reasons you have, to be embarrassed and ashamed: just take everything, exactly as it is, put it in God’s hands and leave it with Him. Then you will be able to rest in Him – really rest – and start the next day, as a new life.” (St. Teresa Benedicta of the Cross)

She is urging us to do two things. First, to begin the day with a time of prayer with the Lord, presenting him our day.  Second, at the end of the day spend some time again with God, giving him whatever happened during the day, thanking him for his presence and love, and leave it all in his hands. There is nothing you can do to change the day. The next day is a new gift from God. Learn to live it in a way that is pleasing to the Lord in spite of all your imperfections. You belong to him and all you have is a gift from him.