Albert Barnes Commentary Acts 7:56

"and said, Behold, I see the heavens opened, and the Son of Man standing on the right hand of God." — Acts 7:56 (ASV)

I see the heavens opened. A figurative expression, meaning that he was permitted to see into heaven, or to see what was there, as if the firmament was divided, and the eye was permitted to penetrate the eternal world. .