For what purpose it was used is a question we can't answer at this moment in time, but what we do know is that whatever was happening there had a great religious significance to them and was linked with worshiping deities-- Deities which clearly are of an otherworldly origin.
С каква причина точно, не знаем в момента, но знаем, че каквото и да се е случило там е имало голяма религиозна важност, и е било свързано с почитането на божества, божества, които определено са с чуждоземен произход.