Today is the fourth Sunday of Lent. The second reading at Mass today is from Ephesians Chapter 5. The final line of the reading (verse 14) states:
“Awake, O sleeper,
and arise from the dead,
and Christ will give you light.”
This put me in mind of Bach's Cantata 140 known as "Sleepers, Awake."
Here's how it sounds on guitar -- via YouTube: