The revelation is given to Peter in the context of his sleep (Acts 10:10). Deep sleep signifies a transformational moment in the workings of God towards mankind. We see it in deep-sleeping dreams to Adam (Genesis 2:21), Abraham (Genesis 15:4), and Daniel (Daniel 7:1).

Cornelius, the God fearing centurion, is a man who has made it his habit to be in the presence of God through prayer.