I have stumbled upon instances where "は + verb" is used in situations where I thought "を + verb" should be used. For example recently I've seen "その覚悟はしてました" (I was prepared for that) and "楽な道は選ぶな" ...
It seems like this is a remnant of (or reference to) older forms of Japanese. Is that all there is to it, or does it have special meaning? Examples from songs: 歌声 笑い声 満ちる大空 目指すは憧れ ...