okay so i get most of it and have good ideas of what it all means, but i have real trouble trying to say it in words. I just get all muddled up... main questions

-the things that come out of the peoples chests and move around show predestination right?? and that everything is predestined, we follow a path.

-the part of the plane came from the future didnt't it? and the whole film is two possible universes that could've existed?? but how did it go from donnie sat there at the end watching the clouds appear and the wormhole appear to him being killed in his bed??

-Also explain the rabbit to me

thanks