Is it possible for a being freed of earthly, astral, and casual karma to be a representative or effectivly identify as the most supreme and derive worship and full authority ?

I have seen in the eastern side of India, that often kosa-kusi is used in puja for achaman and samanya arghya sthapan. I would to know what is the origin of this kosa-kusi, is there any scripture that mentions it? This kosa-kusi is generally made of copper however on rare occasions I have seen ko...