Good resource... I'm still reading it to compare with my webpage on the book as well.
This one statement caught my eye as a former pilot: "In this world we only see half a Rainbow, or the half of things, in Heaven we shall see the whole of things"
..any pilot who has flown for any length of time will tell you that you can see a circle rainbow when you are flying.. which still fits his comment, because in the air (first Heaven) you can see the whole rainbow.