referring to an apocryphal anecdote illustrating the piety or humility of King Canute the Great, in which he demonstrates to his courtiers that he has no control over the elements (the incoming tide), explaining that secular power is vain compared to the supreme power of God
Anyway, the sight of Harold sitting down again like Canute on his throne and looking around for me to explain to him what on earth was now going to happen was too much for me, and I fled.