Sardis: You're the living dead. Don't get too excited, though, because you aren't perfect yet and Jesus could come back at any time. There are a few people who haven't defiled their
garments (v. 4) and he'll dress them up in white and recommend them to god.
Philadelphia: You, Jesus likes. He likes you so much he's going to force the worshipers from a nearby synagogue (or as John likes to call it: the synagogue of Satan (v. 9) to worship the christians. He also promises not to put them on trial during the apocalypse. Finally, he agrees to give them all free tattoos: one with god's name, another with Jerusalem's new name, and finally one with his new name.
Laodiceans: You, Jesus is not so sure about. You've been tepid in your faith and he's been thinking of spitting you out as a result. Apparently they've come into some money and have been bragging that they don't need anything. Jesus counsels them to buy white clothing, gold and eye makeup. He invites himself over to their houses for dinner and promises that in return, when he takes them to heaven, he'll sit them on the throne with himself and his dad.
Now the really trippy part starts. John looks up and sees a door into heaven. A voice calls to him to come up and check things out. He has an out of body experience and goes through the door. The first thing he sees is a throne with a figure on it like a jasper and a sardine stone (v. 3) with a green rainbow around it. There are 24 old men in crowns seated around the main throne. Everybody is silent because the throne has thunder and lightening and voices coming from it. There are seven candlesticks in front of the throne, each representing a spirit. Also in front of the throne is a sea of crystal glass. Arranged around it are four beasts- a lion, a calf, a man and an eagle, with eyes in the fronts and backs of their heads. Each has six wings with eyes on it, and each just sits there all day shrieking Holy, holy, holy, LORD God Almighty,
which was, and is, and is to come (v. 8). When god gets tired of hearing that, the old men cast their crowns at his feet and say Thou art worthy, O Lord, to receive glory and honour and power: for thou
hast created all things, and for thy pleasure they are and were created. (v. 11)