We'll I need help I have found a ancient grave and its an ilyrian place in Macedonia and the church is builded in iliryan castles the church is in 2000m heigh of a mountain... How can you help... Sorry for my bed english ...
So if I'm understanding correctly, you want someone to explain these "treasure signs" to you because you think they are clues that lead toward a grail/chalice? To me, these look like the typical decorative symbols I see when I type "illyrian symbols" into Google image search. There might be some "clues" at the church, but I don't think these are the ones you're looking for.