I actually like it best not knowing the story, although the story is great too. Without the story, he just looks plum crazy. I suppose knowing he catches nothing and keeps doing it makes him look crazy too.
Oh, who am I kidding? We're all crazy. Great shot!
Thank goodness for your description. LIke Bob I thought this a weird native ritual of dance and prayer to deliver the fish. A dance to Bluey (which is who us Aussie's scream at it if things fishing (and usually boat related) so pear shaped.