A sage could say they were the same, parts of some degree,
Say so as they will about the double-tree? For life and knowledge go
'hand-in-hand,'
..which wife and husband weave.
Traditional rhyme.
All myth is based on observable celestial phenomena. As language has progressed and mankind has become more complex they take on a more modern character from each successive cultural interpretation. The original man was earth and the sun/sky was his consort.