Trinity and the Deathly Hallows

Yesterday, in class, we discussed the various trinitarian icons from both eastern and western christendom. The aeternitas caught my attention (no photo from the net) - it showed God, the father, sitting with the sun behind him and in front of him is the trinitarian combination of the circle and triangle (triangle inside the circle). Of course, the other combination (circle inside the triangle) is also regarded as a trinitarian symbol.Lately, we also saw this in the last book of the Harry Potter, in the symbol for the deathly hallows.

Harry Potter, of course, draws largely from iconographic history - primitive, greek, christian and, even, eastern. As Dr. Miroy says, Art is never original. Never mind that Ricoeur will contest this idea.