I always understood this sentence in the sense that Anakin wanted to 'conquer' the Emperor but that he, underestimating the Emperor's power, was instead lured to the Dark Side.
So would it make sense then that Yoda gets hurt by the Emperor and that Anakin, thinking that he's the greatest of all and that he can teach the Emperor a lesson, tries to intervene but instead loses and turns to the Dark Side?
If we only knew
