 By virtue of reading the "Shema", Jews are supported by angelic watchers of the day and entrusted to the watchers of the night.When, on awakening, they again proclaim the sovereignty of God, the watchers of the night hand them over to the watchers of the day, as can be read to say, "My soul is entrusted to the Lord; from the time of the watchers of the morning to that of the watchers of the following morning.