Please take a look at the following quote:
“Happiness is a fatality,” wrote the poet Rimbaud. I remember being somewhat puzzled when I first read that line, and then feeling a sense of ease and liberation wash over me. Turning the idea of happiness on its head had suddenly made me very happy.
-- Crazy Wisdom Saves the World Again! by Wes "Scoop" Nisker, page 69.
Is it better to change wash into washing? Because I think this would be more suitable according to grammatical rules.