Temptation

This window is one that is part of the cloister of Gloucester Cathedral, an Anglican cathedral in England, (that's for the yanks). It is the devil tempting Christ when he went into the desert. Unusually I thought is the choice of blue, a rather cold colour, for a being, mythical or otherwise, that is supposed to live in such a warm environment. Thinking some more about this perhaps its a similar idea to that which colours the Hindi god Krishna who if I remember correctly is blue as he has taken all the posions of the world into his body to remove them from the world. So perhaps the blue means that el diablo is poision.
Well, the big window is, if I remember right over 700 years old and two thirds original, so maybe this one has similar antiquity and they had different associations of colours then.