Blessed Anne Catherine Emmerich on the Seven Churches

I've been meaning to find this quote for a while now. According to Blessed Anne Catherine Emmerich who we know routinely had visions all her life, Jesus gave the Apostle John a little instruction at the Last Supper. Here is how she supposedly dictated it:

He {Jesus} spoke for some time to John alone {at the Last Supper}. Of this I remember only that Jesus told him that his life would be longer than that of the others, and that He said something about seven churches, something about crowns and angels and similar significant symbols by which, as well as I know, He designated certain epochs. The other Apostles felt slightly jealous at this special communication to John. (From the visions of Blessed Anne Catherine Emmerich)