There are some horns on the ground and a moon knife in front of you. When you try to move, they always rotate around with you, staying right in front. You can't escape these objects, for some reason.
This kanji means before too. Something that's in front of you is before you, after all.
You're going crazy with these things in front of you all the time. You finally seek the help of a Zen (ぜん) master, who tells you that meditation will save you from this curse. You try it out, and sure enough, the objects are gone! It worked!