Trying to make sense of this movie...
This is the way I feel about the movie....have I understood it correctly?
Jake gets stabbed in Vietnam and is close to dying and on his "death-bed". While on his death-bed his mind starts having all of these hallucinations. These are almost like dreams when someone is sleeping. His chiropractor tells him something like "When you are dying, if you try to fight it, you will see demons that try to take you to hell. But only after you accept it and let it happen, angels will take you to heaven."
Is this why Jake keeps seeing demons? Because he is really over in Vietnam dying from the stab wound but he is fighting it, so his mind is hallucinating and making up demons? But in the end when he finally accepts it and dies, that is when he sees his dead son and the two of them walk hand-in-hand up the staircase. This is a metaphor for an angel leading him to heaven. That is also why when that happens it shows him in Vietnam dead and the doctor says he almost looks happy and it shows Jake's face smiling.
Do I have it down pretty good up to this point? Also some things I'm curious about....I believe all of the Vietnam scenes are actually real. Everytime we see what we think is a flash-back from his current life to Vietnam, did all of those scenes actually happen? (the troops carrying him out of the jungle to safety and lifting him up on the chopper)?
Did the drug 'The Ladder' even exist? If the Vietnam scenes are real then I would think yes, because the guys start acting weird during the battle and obviously something is wrong with them. But then later in the movie Jake meets that chemist who tells him all about the drug. If everything after the Vietnam scene is just in Jake's head then that chemist doesn't exist and that conversation between the two of them never happened and therefore the drug doesn't exist? Unless they really were drugged and now this is Jake's mind's way of making sense of the Vietnam battle.
Did anything we see after the Vietnam war actually happen? His girlfriend Jessie or whatever her name was....did she even exist? Did he actually work at a post-office?
If nothing we see after the Vietnam scene is real and just in his head then what is the significance of showing his old Vietnam buddies and showing one of them getting blown up in his car?