I just don't understand this. This is most obvious during the airport scenes. He keeps the terminal open and coerces the rental agent into giving her a faulty vehicle. What was his overall intent?
shareYes, he was trying to help her, but completely failed. Didn't his clairvoyant powers tell him it wasn't a good idea???
shareYeah, he had good intentions but also he was taking on the Wendigo's influence and how it kept trying to keep Rachel from reaching Louis and preventing what ended up happening that night.
shareGoing purely off the film (since the Wendigo is pretty much non-existent there as opposed to in the book), I thought it was pretty obvious that he was just trying to get Rachel home in time to either intercept Louis and stop him from taking Gage to the burial ground or, if they were too late for that, she could at least see for herself just how far Louis has gone and possibly convince him to just up and leave the area and go straight back to Chicago before Gage could do too much damage. To put it simply, he just needed to get Rachel home as soon as possible in order to stop Louis.
The "ghost rules" aren't exactly spelled out but it's quite clear that Pascow can see what someone is intending to do and can influence their decisions in small ways but he can't outright make them do anything, and he can sense future negative consequences for certain actions (e.g. warning Louis away from the burial ground even before Church dies), but that doesn't necessarily equal "seeing the future of every possible decision he or anyone else makes". Throughout the story he's constantly trying to help and advise Louis and the rest of the family avoid what's coming, but he's naturally fairly limited as to what he can actually do to prevent it. If someone chooses to just ignore his warnings (as Louis does constantly), there's nothing he can do to stop them doing what they want.