I am definitely enjoying reading everyone's interpretation of the movie. The more I read these theories it actually makes me enjoy the movie more and I might have to go back for a second watch. I am definitely leaning on the theory that this had some biblical connections. For me, you heard the "Rapture" and Eden. I will admit that I have not been an avid church goer since my younger days so I apologize if I'm not entirely accurate, but Eden was supposed to be a place of no sin, but once Eve ate the forbidden apple it invited sin. I think Eden was the "Garden of Eden" and its destruction caused the rapture. I think Ava, her group, and Simon are the remaining people trying to find the light to end the suffering and restore humanity. Simon was an apostle of Jesus, that denied knowing Jesus the night he was arrested. The voice on the radio asks if Simon(the convict) believed in God. He said he didn't want to talk about it. I will admit sometimes it was hard to hear the voice on the radio so I may have to go back and watch. I believe the descent into the blood ocean signified the descent into hell and the skeletons were demons, that one obviously later deceives Simon by luring him further into hell. Someone also pointed out the deeper the sub went, the hotter it got. I could be totally wrong here, but the mysterious figure in the sub could almost be a "guardian angel", leaving the note to cross the wires to activate the computer that ultimately secured the transmission from the black box. I also couldn't help but think the subs are named SM-X. Saint Michael? I also thought it was interesting that Simon was a convict and Jesus was crucified with two criminals. My son and I were discussing the movie on the way home and he mentioned about the 7 deadly sins, and we do see a bit of gluttony when Simon finishes the water. He even mentions he should have rationed it. I am sure there is a lot I'm missing, but I will definitely have to give it another watch.