Ok, so we know about the satanic and biblical connotations throughout The Mentalist. If you don't here is a brief summary.
As shown when Lisbon responds to the emergency call in 6-01, there are many satanic messages on the walls including 666 and die, along with other satanic drawings. Heller told us there was a big clue in this season, there you have it.
Episode 7 of the series is "The Great Red Dragon", a 7 (yes in episode 7, coincidence?) headed dragon which is a depiction of the devil in the book of revelations. This Dragon was also the subject of 4 paintings by William Blake. Yes, the same "Tyger, Tyger" Blake. The 7 headed-dragon is a reflection of the list of 7. One of the dragon's heads is said to be fatally wounded, "but the fatal wound had healed". This is Brett Partridge. Now I believe Partridge isn't dead due to two things. First is the fact that this wound had been healed. The second is the "Brace of Partridge", another painting by Blake, which depicts two dead Pigeons. However the word "Brace" means two. The word brace could mean a second coming, lending itself to the possibility that Partridge isn't dead.An alternative theory could be Red John was aiming to kill Lisbon and have her as the second pigeon. This theory makes out like Red John is killing off his fear (Pigeons) symbolically, however i cannot understand why his "fears" are Partridge and Lisbon.
Speaking of pigeons, it is now quite widely believed that Red John is Ornithophobic, which is the fear of pigeons. Someone put this together due to the extended shots of pigeons in season 6. Also, McAllister jumped at pigeons in the tower at the end of 6-03 However this is backed up by William Blake's "The Brace of Partridge" depicting dead pigeons. So we also know that he is not afraid of heights, so don't get caught up in that yarn any longer and look out for those pigeons!!
Now, the subject of my real enquiry is the paintings "The Great Red Dragon and the Woman Clothed in Sun" and also "The Great Red Dragon and the Woman Clothed with the Sun". If it is believed that Heller and the writing team are sticking with the same analogy, it comes to reason that a heavily featured part of Blake's dragon paintings, the woman clothed in sun, is featured. So we know who the dragon represents, Red John, but who is the woman clothed in sun? Well the obvious answer is Teresa Lisbon, however I believe it is Grace Van Pelt. Van Pelt's red hair is the reason why. The "sun" has been translated by Heller as Grace's long red hair.
Now, we know that Van Pelt and Rigsby leave the CBI this season. I feel that Van Pelt has been RJ's mole in the CBI, hence being "in sun". now as she leaves she is not in the sun any more. This, i believe, is a metaphor for her transition out of the CBI, and to RJ seeing she has outlived her usefulness. But i don't think it will be RJ that kills her, I think it will be Rigsby. RJ will let Rigsby find out that she is/was the mole. This is all speculation of course.
There is another painting by Blake called "The Red Dragon and The Beast From the Sea". The beast from the sea is the CBI/Patrick Jane's allies in my opinion. But lets see a little more down the road. Sorry if this looks like a ramble put on a computer, that's because it is.
