He knows the reality of spiritual warfare, seeking to advance in virtue while the hater of his soul seeks to advance into the man's life his own vice. The guardian angel of his soul stands near. The man's focus rests downward, on his here and his now, while the focus - indeed, the obsession - of his enemy rests ... well, look at his eyes.
The Chess Players, by German painter Friedrich August Moritz Retzsch (1779-1857).
Are they on the bug?