>>214079168 (OP)
he lets himself out.
grady was allegedly the previous caretaker, but grady tells him that he has always been the caretaker.
i believe that hotel had people dying there, but them now interacting are the manifestation of the peoples shining. and that being said, both danny and jack have it. which also suggest exactly this
>>214079489
jack is foretelling the future, just like danny, he cuts off the snow cats cables before he tells wendy she is in for a surprise if she tries to run away.
same in the maze, he follows danny to a t, only until danny outsmarts him.
or when he goes after wendy knowing exactly where she is hiding in the bathroom. The timing of jack going behind his family is noteable.
>>214079529
jack violating danny is an going theme too. you have the reincarnation of evil and its symbols like the bear (when danny is resting on one at the doctors visit), that spans over generation.
the shining is what light does, it permeates, gives off echoes, communication through time and space, meaning it also changes reality.