It is because you read the translation that intentionally translated them into obscure hard to understand and interpret language. So that they poem feels more a

It is because you read the translation that intentionally translated them into obscure hard to understand and interpret language. So that they poem feels more ancient and "serious" to reader. But originally they were written in the language of the time and in the way that made them easy to remember for contemporaries. They had rhythm, because that is easier to remember. They contained a lot of repetition, because that is easier to remember.